Quantum internet is near? Scientists ‘teleport’ data between chips for the first time @ A guide to Harvard Referencing: an introduction by CIM @ Using APA style for references and citations & How to choose Research Topic | Crack the Secret Code @ How to Find the Best Research Paper Topics & Finding online sources for your research paper @ How to Start a Research Paper @ Writing a research thesis proposal & Writing a Winning Research Proposal – Ray Boxman & How to Develop a Good Research Topic @ Developing a Research Question & What is research? @ Introduction to academic research & Intro to Research Methods & Methods and methodology @ Correlation Statistics & ´´Quantum networks form an important element of quantum computing and quantum communication systems. Quantum networks facilitate the transmission of information in the form of quantum bits, also called qubits, between physically separated quantum processors. A quantum processor is a small quantum computer being able to perform quantum logic gates on a certain number of qubits. ´´ @ Videos, images and links

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Pathol Res Pract. 2012 Jul 15;208(7):377-81. doi: 10.1016/j.prp.2012.04.006. Epub 2012 Jun 8.

The influence of physical activity in the progression of experimental lung cancer in mice

Renato Batista Paceli 1, Rodrigo Nunes Cal, Carlos Henrique Ferreira dos Santos, José Antonio Cordeiro, Cassiano Merussi Neiva, Kazuo Kawano Nagamine, Patrícia Maluf Cury


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GRUPO_AF1 – GROUP AFA1 – Aerobic Physical Activity – Atividade Física Aeróbia – ´´My´´ Dissertation – Faculty of Medicine of Sao Jose do Rio Preto

GRUPO AFAN 1 – GROUP AFAN1 – Anaerobic Physical Activity – Atividade Física Anaeróbia – ´´My´´ Dissertation – Faculty of Medicine of Sao Jose do Rio Preto

GRUPO_AF2 – GROUP AFA2 – Aerobic Physical Activity – Atividade Física Aeróbia – ´´My´´ Dissertation – Faculty of Medicine of Sao Jose do Rio Preto

GRUPO AFAN 2 – GROUP AFAN 2 – Anaerobic Physical Activity – Atividade Física Anaeróbia – ´´My´´ Dissertation – Faculty of Medicine of Sao Jose do Rio Preto

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https://pubmed.ncbi.nlm.nih.gov/22683274/

Abstract

Lung cancer is one of the most incident neoplasms in the world, representing the main cause of mortality for cancer. Many epidemiologic studies have suggested that physical activity may reduce the risk of lung cancer, other works evaluate the effectiveness of the use of the physical activity in the suppression, remission and reduction of the recurrence of tumors. The aim of this study was to evaluate the effects of aerobic and anaerobic physical activity in the development and the progression of lung cancer. Lung tumors were induced with a dose of 3mg of urethane/kg, in 67 male Balb – C type mice, divided in three groups: group 1_24 mice treated with urethane and without physical activity; group 2_25 mice with urethane and subjected to aerobic swimming free exercise; group 3_18 mice with urethane, subjected to anaerobic swimming exercise with gradual loading 5-20% of body weight. All the animals were sacrificed after 20 weeks, and lung lesions were analyzed. The median number of lesions (nodules and hyperplasia) was 3.0 for group 1, 2.0 for group 2 and 1.5-3 (p=0.052). When comparing only the presence or absence of lesion, there was a decrease in the number of lesions in group 3 as compared with group 1 (p=0.03) but not in relation to group 2. There were no metastases or other changes in other organs. The anaerobic physical activity, but not aerobic, diminishes the incidence of experimental lung tumors.

´´We propose to change the default P-value threshold for statistical significance from 0.05 to 0.005 for claims of new discoveries.´´ https://www.nature.com/articles/s41562-017-0189-z Published:  Daniel J. Benjamin, James O. Berger, […]Valen E. Johnson Nature Human Behaviour volume 2, pages6–10 (2018)

Um mundo além de p < 0,05 « Sandra Merlo – Fonoaudiologia da Fluência

´´My´´ Monografia – Monograph – Induction of benznidazole resistance in human Trypanosoma cruzi isolates – Indução de resistência ao benzonidazol em isolados humanos de Trypanosoma cruzi – UFTM – Federal University of Triangulo Mineiro – Uberaba 

Avaliação da influência da atividade física aeróbia e anaeróbia na progressão do câncer de pulmão experimental – Summary – Resumo

Article – ´´My´´ dissertation – Faculty of Medicine of Sao Jose do Rio Preto

Feedback positivo de pessoas sobre minha dissertação pelo Messenger – Facebook. Positive feedback of people about my dissertation, blog and YouTube channel by Facebook – Messenger. Year – Ano: 2018

LISTA DE NOMES DE PESSOAS QUE ME DERAM FEEDBACK POSITIVO SOBRE A LISTA DE EMAILS QUE FIZ EM 2015 (PROJETO) – PEOPLE´S NAMES (POSITIVE FEEDBACK ABOUT THE EMAIL LIST I DID IN 2015) – E-MAIL LIST – LISTA DE E-MAILS – PROJECT – PESQUISA -RESEARCH

My suggestion of a very important Project…

Apostila – Pubmed

A Psicossomática Psicanalítica – Faculty of Medicine of Sao Jose do Rio Preto

ÁCIDO HIALURÔNICO – HIALURONIC ACID – Faculty of Medicine of Sao Jose do Rio Preto

Slides – Mestrado final – ´´My´´ dissertation – Faculty of Medicine of Sao Jose do Rio Preto

Avaliação da influência da atividade física aeróbia e anaeróbia na progressão do câncer de pulmão experimental – Summary – Resumo

O Homem como Sujeito da Realidade da Saúde – Redação – Faculty of Medicine of Sao Jose do Rio Preto

Aula_Resultados – Results – FAMERP – Faculty of Medicine of Sao Jose do Rio Preto

As credenciais da ciência – The credentials of Science – Faculty of Medicine of Sao Jose do Rio Preto BaixarFrases que digitei – Phrases I typed

Frases que digitei – Tecnologia – Informations about blog I did

Keynote-The-Future-of-Space-Exploration(1)

2019-01-hormone-alzheimer(1)

mojap-02-00034

ajpheart.00349.2013

aging – animal models

Nanomedicine an evolving research (Opinion article I typed)

journal-of-nanomedicine–nanotechnology-flyer

Will you embrace AI fast enough

MICROBIOLOGIA – MICROBIOLOGY – Faculty of Medicine of Sao Jose do Rio Preto

Genes e Epilepsia – Genes and epilepsy – Faculty of Medicine of Sao Jose do Rio Preto

Dr.A.M.S

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BIOGRAFIA – BIOGRAPH – DR. DOMINGO MARCOLINO BRAILE

p-Value – Valor de p

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https://en.wikipedia.org/wiki/Quantum_network

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Quantum internet is near? Scientists ‘teleport’ data between chips for the first time

29 Dec, 2019 05:57 / Updated 2 days agoGet short URL

Quantum internet is near? Scientists ‘teleport’ data between chips for the first time

Conceptual artwork on quantum computing. © Getty Images / VICTOR HABBICK VISIONS

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Filling up your computer with cat pictures and memes through the quantum internet is apparently one step closer, as scientists managed to instantly “teleport” data between two chips that are not connected for the very first time.

Quantum computers are the dream of modern physics as they could solve problems that are too difficult for today’s most powerful supercomputers, but creating them requires learning how to manage the elusive quantum particles, which are smaller than atoms.

Scientists from the University of Bristol and the Technical University of Denmark have created “chip-scale devices” that are able to utilize quantum physics to manipulate single particles of light. The team’s findings have been published in the journal Nature Physics. 

In one of the experiments with the chips, described as a “breakthrough,” the researchers were able to demonstrate “the quantum teleportation of information” between two programmable devices for the very first time using a physical process known as “quantum entanglement.”ALSO ON RT.COMGhost post! Google creates world’s most powerful computer, NASA ‘accidentally reveals’ …and then publication vanishes

This is a phenomenon in which two or more particles have a similar state, and a change in one means a change in another and the distance between the two is irrelevant.

“We were able to demonstrate a high-quality entanglement link across two chips in the lab, where photons on either chip share a single quantum state,” research co-author Dan Llewellyn said. 

The flagship demonstration was a two-chip teleportation experiment, whereby the individual quantum state of a particle is transmitted across the two chips after a quantum measurement is performed. This measurement utilizes the strange behavior of quantum physics, which simultaneously collapses the entanglement link and transfers the particle state to another particle already on the receiver chip.

The scientists were also able to create a more complex circuit of four sources – and all of them turned out to be “nearly identical” thanks to the aforementioned entanglement. All in all, the team had a 91 percent success rate in getting the particles ‘teleported’ – which is a very solid result, according to the researchers.

The ability to create and maintain reliable quantum circuits is the key to creating more complex devices, and, ultimately, quantum communication systems and networks able to interact with conventional electronics.

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Quantum network

From Wikipedia, the free encyclopediaJump to navigationJump to searchThis article is about the implementation and operation of quantum networks. For a mathematical description of quantum communication channels, see Quantum channel.

Quantum networks form an important element of quantum computing and quantum communication systems. Quantum networks facilitate the transmission of information in the form of quantum bits, also called qubits, between physically separated quantum processors. A quantum processor is a small quantum computer being able to perform quantum logic gates on a certain number of qubits. Quantum networks work in a similar way to classical networks. The main difference, as will be detailed more in later paragraphs, is that quantum networking like quantum computing is better at solving certain problems, such as modeling quantum systems.

Contents

Basics[edit]

Quantum networks for computation[edit]

Networked quantum computing or distributed quantum computing[1][2] works by linking multiple quantum processors through a quantum network by sending qubits in-between them. Doing this creates a quantum computing cluster and therefore creates more computing potential. Less powerful computers can be linked in this way to create one more powerful processor. This is analogous to connecting several classical computers to form a computer cluster in classical computing. Like classical computing this system is scale-able by adding more and more quantum computers to the network. Currently quantum processors are only separated by short distances.

Quantum networks for communication[edit]

In the realm of quantum communication, one wants to send qubits from one quantum processor to another over long distances. This way local quantum networks can be intra connected into a quantum internet. A quantum internet[1] supports many applications, which derive their power from the fact that by creating quantum entangled qubits, information can be transmitted between the remote quantum processors. Most applications of a quantum internet require only very modest quantum processors. For most quantum internet protocols, such as quantum key distribution in quantum cryptography, it is sufficient if these processors are capable of preparing and measuring only a single qubit at a time. This is in contrast to quantum computing where interesting applications can only be realized if the (combined) quantum processors can easily simulate more qubits than a classical computer (around 60[3]). Quantum internet applications require only small quantum processors, often just a single qubit, because quantum entanglement can already be realized between just two qubits. A simulation of an entangled quantum system on a classical computer can not simultaneously provide the same security and speed.

Overview of the elements of a quantum network[edit]

The basic structure of a quantum network and more generally a quantum internet is analogous to a classical network. First, we have end nodes on which applications are ultimately run. These end nodes are quantum processors of at least one qubit. Some applications of a quantum internet require quantum processors of several qubits as well as a quantum memory at the end nodes.

Second, to transport qubits from one node to another, we need communication lines. For the purpose of quantum communication, standard telecom fibers can be used. For networked quantum computing, in which quantum processors are linked at short distances, different wavelengths are chosen depending on the exact hardware platform of the quantum processor.

Third, to make maximum use of communication infrastructure, one requires optical switches capable of delivering qubits to the intended quantum processor. These switches need to preserve quantum coherence, which makes them more challenging to realize than standard optical switches.

Finally, one requires a quantum repeater to transport qubits over long distances. Repeaters appear in-between end nodes.[4] Since qubits cannot be copied, classical signal amplification is not possible. By necessity, a quantum repeater works in a fundamentally different way than a classical repeater.

Elements of a quantum network[edit]

End nodes: quantum processors[edit]

End nodes can both receive and emit information.[4] Telecommunication lasers and parametric down-conversion combined with photodetectors can be used for quantum key distribution. In this case, the end nodes can in many cases be very simple devices consisting only of beamsplitters and photodetectors.

However, for many protocols more sophisticated end nodes are desirable. These systems provide advanced processing capabilities and can also be used as quantum repeaters. Their chief advantage is that they can store and retransmit quantum information without disrupting the underlying quantum state. The quantum state being stored can either be the relative spin of an electron in a magnetic field or the energy state of an electron.[4] They can also perform quantum logic gates.

One way of realizing such end nodes is by using color centers in diamond, such as the nitrogen-vacancy center. This system forms a small quantum processor featuring several qubits. NV centers can be utilized at room temperatures.[4] Small scale quantum algorithms and quantum error correction[5] has already been demonstrated in this system, as well as the ability to entangle two remote[6] quantum processors, and perform deterministic quantum teleportation.[7]

Another possible platform are quantum processors based on Ion traps, which utilize radio-frequency magnetic fields and lasers.[4] In a multispecies trapped-ion node network, photons entangled with a parent atom are used to entangle different nodes.[8] Also, cavity quantum electrodynamics (Cavity QED) is one possible method of doing this. In Cavity QED, photonic quantum states can be transferred to and from atomic quantum states stored in single atoms contained in optical cavities. This allows for the transfer of quantum states between single atoms using optical fiber in addition to the creation of remote entanglement between distant atoms.[4][9][10]

Communication lines: physical layer[edit]

Over long distances, the primary method of operating quantum networks is to use optical networks and photon-based qubits. This is due to optical networks having a reduced chance of decoherence. Optical networks have the advantage of being able to re-use existing optical fiber. Alternately, free space networks can be implemented that transmit quantum information through the atmosphere or through a vacuum.[11]

Fiber optic networks[edit]

Optical networks using existing telecommunication fiber can be implemented using hardware similar to existing telecommunication equipment. This fiber can be either single-mode or multi-mode, with multi-mode allowing for more precise communication.[4] At the sender, a single photon source can be created by heavily attenuating a standard telecommunication laser such that the mean number of photons per pulse is less than 1. For receiving, an avalanche photodetector can be used. Various methods of phase or polarization control can be used such as interferometers and beam splitters. In the case of entanglement based protocols, entangled photons can be generated through spontaneous parametric down-conversion. In both cases, the telecom fiber can be multiplexed to send non-quantum timing and control signals.

Free space networks[edit]

Free space quantum networks operate similar to fiber optic networks but rely on line of sight between the communicating parties instead of using a fiber optic connection. Free space networks can typically support higher transmission rates than fiber optic networks and do not have to account for polarization scrambling caused by optical fiber.[12] However, over long distances, free space communication is subject to an increased chance of environmental disturbance on the photons.[4]

Importantly, free space communication is also possible from a satellite to the ground. A quantum satellite capable of entanglement distribution over a distance of 1,203 km[13] has been demonstrated. The experimental exchange of single photons from a global navigation satellite system at a slant distance of 20,000 km has also been reported.[14] These satellites can play an important role in linking smaller ground-based networks over larger distances.

Repeaters[edit]

Long distance communication is hindered by the effects of signal loss and decoherence inherent to most transport mediums such as optical fiber. In classical communication, amplifiers can be used to boost the signal during transmission, but in a quantum network amplifiers cannot be used since qubits cannot be copied – known as the no-cloning theorem. That is, to implement an amplifier, the complete state of the flying qubit would need to be determined, something which is both unwanted and impossible.

Trusted repeaters[edit]

An intermediary step which allows the testing of communication infrastructure are trusted repeaters. Importantly, a trusted repeater cannot be used to transmit qubits over long distances. Instead, a trusted repeater can only be used to perform quantum key distribution with the additional assumption that the repeater is trusted. Consider two end nodes A and B, and a trusted repeater R in the middle. A and R now perform quantum key distribution to generate a key {\displaystyle k_{AR}}{\displaystyle k_{AR}}. Similarly, R and B run quantum key distribution to generate a key {\displaystyle k_{RB}}{\displaystyle k_{RB}}. A and B can now obtain a key {\displaystyle k_{AB}}{\displaystyle k_{AB}} between themselves as follows: A sends {\displaystyle k_{AB}}{\displaystyle k_{AB}} to R encrypted with the key {\displaystyle k_{AR}}{\displaystyle k_{AR}}. R decrypts to obtain {\displaystyle k_{AB}}{\displaystyle k_{AB}}. R then re-encrypts {\displaystyle k_{AB}}{\displaystyle k_{AB}} using the key {\displaystyle k_{RB}}{\displaystyle k_{RB}} and sends it to B. B decrypts to obtain {\displaystyle k_{AB}}{\displaystyle k_{AB}}. A and B now share the key {\displaystyle k_{AB}}{\displaystyle k_{AB}}. The key is secure from an outside eavesdropper, but clearly the repeater R also knows {\displaystyle k_{AB}}{\displaystyle k_{AB}}. This means that any subsequent communication between A and B does not provide end to end security, but is only secure as long as A and B trust the repeater R.

Quantum repeaters[edit]

Diagram for quantum teleportation of a photon

A true quantum repeater allows the end to end generation of quantum entanglement, and thus – by using quantum teleportation – the end to end transmission of qubits. In quantum key distribution protocols one can test for such entanglement. This means that when making encryption keys, the sender and receiver are secure even if they do not trust the quantum repeater. Any other application of a quantum internet also requires the end to end transmission of qubits, and thus a quantum repeater.

Quantum repeaters allow entanglement and can be established at distant nodes without physically sending an entangled qubit the entire distance.[15]

In this case, the quantum network consists of many short distance links of perhaps tens or hundreds of kilometers. In the simplest case of a single repeater, two pairs of entangled qubits are established: {\displaystyle |A\rangle }|A\rangle  and {\displaystyle |R_{a}\rangle }|R_a\rangle located at the sender and the repeater, and a second pair {\displaystyle |R_{b}\rangle }|R_b\rangle and {\displaystyle |B\rangle }|B\rangle  located at the repeater and the receiver. These initial entangled qubits can be easily created, for example through parametric down conversion, with one qubit physically transmitted to an adjacent node. At this point, the repeater can perform a bell measurement on the qubits {\displaystyle |R_{a}\rangle }|R_a\rangle and {\displaystyle |R_{b}\rangle }|R_b\rangle thus teleporting the quantum state of {\displaystyle |R_{a}\rangle }|R_a\rangle onto {\displaystyle |B\rangle }|B\rangle . This has the effect of “swapping” the entanglement such that {\displaystyle |A\rangle }|A\rangle  and {\displaystyle |B\rangle }|B\rangle  are now entangled at a distance twice that of the initial entangled pairs. It can be seen that a network of such repeaters can be used linearly or in a hierarchical fashion to establish entanglement over great distances.[16]

Hardware platforms suitable as end nodes above can also function as quantum repeaters. However, there are also hardware platforms specific only[17] to the task of acting as a repeater, without the capabilities of performing quantum gates.

Error correction[edit]

Main article: Quantum error correction

Error correction can be used in quantum repeaters. Due to technological limitations, however, the applicability is limited to very short distances as quantum error correction schemes capable of protecting qubits over long distances would require an extremely large amount of qubits and hence extremely large quantum computers.

Errors in communication can be broadly classified into two types: Loss errors (due to optical fiber/environment) and operation errors (such as depolarization, dephasing etc.). While redundancy can be used to detect and correct classical errors, redundant qubits cannot be created due to the no-cloning theorem. As a result, other types of error correction must be introduced such as the Shor code or one of a number of more general and efficient codes. All of these codes work by distributing the quantum information across multiple entangled qubits so that operation errors as well as loss errors can be corrected.[18]

In addition to quantum error correction, classical error correction can be employed by quantum networks in special cases such as quantum key distribution. In these cases, the goal of the quantum communication is to securely transmit a string of classical bits. Traditional error correction codes such as Hamming codes can be applied to the bit string before encoding and transmission on the quantum network.

Entanglement purification[edit]

Main article: Entanglement distillation

Quantum decoherence can occur when one qubit from a maximally entangled bell state is transmitted across a quantum network. Entanglement purification allows for the creation of nearly maximally entangled qubits from a large number of arbitrary weakly entangled qubits, and thus provides additional protection against errors. Entanglement purification (also known as Entanglement distillation) has already been demonstrated in Nitrogen-vacancy centers in diamond.[19]

Applications[edit]

A quantum internet supports numerous applications, enabled by quantum entanglement. In general, quantum entanglement is well suited for tasks that require coordination, synchronization or privacy.

Examples of such applications include quantum key distribution,[20][21] clock synchronization,[22] protocols for distributed system problems such as leader election or byzantine agreement,[4] extending the baseline of telescopes,[23][24] as well as position verification, secure identification and two-party cryptography in the noisy-storage model. A quantum internet also enables secure access to a quantum computer[25] in the cloud. Specifically, a quantum internet enables very simple quantum devices to connect to a remote quantum computer in such a way that computations can be performed there without the quantum computer finding out what this computation actually is (the input and output quantum states can not be measured without destroying the computation, but the circuit composition used for the calculation will be known).

Secure communications[edit]

When it comes to communicating in any form the largest issue has always been keeping your communications private.[26] From when couriers were used to send letters between ancient battle commanders to secure radio communications that exist today the main purpose is to ensure that what a sender sends out to the receiver reaches the receiver unmolested. This is an area in which Quantum Networks particularly excel. By applying a quantum operator that the user selects to a system of information the information can then be sent to the receiver without a chance of an eavesdropper being able to accurately be able to record the sent information without either the sender or receiver knowing. This works because if a listener tries to listen in then they will change the information in an unintended way by listening thereby tipping their hand to the people on whom they are attacking. Secondly, without the proper quantum operator to decode the information they will corrupt the sent information without being able to use it themselves.

Current status[edit]

Quantum internet[edit]

At present, there is no network connecting quantum processors, or quantum repeaters deployed outside a lab.

Quantum key distribution networks[edit]

Several test networks have been deployed that are tailored to the task of quantum key distribution either at short distances (but connecting many users), or over larger distances by relying on trusted repeaters. These networks do not yet allow for the end to end transmission of qubits or the end to end creation of entanglement between far away nodes.

Quantum networkStartBB84BBM92E91DPSCOW
DARPA Quantum Network2001YesNoNoNoNo
SECOCQ QKD network in Vienna2003YesYesNoNoYes
Tokyo QKD network2009YesYesNoYesNo
Hierarchical network in Wuhu, China2009YesNoNoNoNo
Geneva area network (SwissQuantum)2010YesNoNoNoYes

DARPA Quantum NetworkStarting in the early 2000s, DARPA began sponsorship of a quantum network development project with the aim of implementing secure communication. The DARPA Quantum Network became operational within the BBN Technologies laboratory in late 2003 and was expanded further in 2004 to include nodes at Harvard and Boston Universities. The network consists of multiple physical layers including fiber optics supporting phase-modulated lasers and entangled photons as well free-space links.[27][28]SECOQC Vienna QKD networkFrom 2003 to 2008 the Secure Communication based on Quantum Cryptography (SECOQC) project developed a collaborative network between a number of European institutions. The architecture chosen for the SECOQC project is a trusted repeater architecture which consists of point-to-point quantum links between devices where long distance communication is accomplished through the use of repeaters.[29]Chinese hierarchical networkIn May 2009, a hierarchical quantum network was demonstrated in Wuhu, China. The hierarchical network consists of a backbone network of four nodes connecting a number of subnets. The backbone nodes are connected through an optical switching quantum router. Nodes within each subnet are also connected through an optical switch and are connected to the backbone network through a trusted relay.[30]Geneva area network (SwissQuantum)The SwissQuantum network developed and tested between 2009 and 2011 linked facilities at CERN with the University of Geneva and hepia in Geneva. The SwissQuantum program focused on transitioning the technologies developed in the SECOQC and other research quantum networks into a production environment. In particular the integration with existing telecommunication networks, and its reliability and robustness.[31]Tokyo QKD networkIn 2010, a number of organizations from Japan and the European Union setup and tested the Tokyo QKD network. The Tokyo network build upon existing QKD technologies and adopted a SECOQC like network architecture. For the first time, one-time-pad encryption was implemented at high enough data rates to support popular end-user application such as secure voice and video conferencing. Previous large-scale QKD networks typically used classical encryption algorithms such as AES for high-rate data transfer and use the quantum-derived keys for low rate data or for regularly re-keying the classical encryption algorithms.[32]Beijing-Shanghai Trunk LineIn September 2017, a 2000-km quantum key distribution network between Beijing and Shanghai, China, was officially opened. This trunk line will serve as a backbone connecting quantum networks in Beijing, Shanghai, Jinan in Shandong province and Hefei in Anhui province. During the opening ceremony, two employees from the Bank of Communications completed a transaction from Shanghai to Beijing using the network. The State Grid Corporation of China is also developing a managing application for the link.[33] The line uses 32 trusted nodes as repeaters.[34] A quantum telecommunication network has been also put into service in Wuhan, capital of central China’s Hubei Province, which will be connected to the trunk. Other similar city quantum networks along the Yangtze River are planned to follow.[35]

See also[edit]

References[edit]

  1. ^ Jump up to:a b Kimble, H. J. (2008-06-19). “The quantum internet”. Nature. 453 (7198): 1023–1030. arXiv:0806.4195. Bibcode:2008Natur.453.1023K. doi:10.1038/nature07127. ISSN 0028-0836. PMID 18563153.
  2. ^ Caleffi, Marcello; Cacciapuoti, Angela Sara; Bianchi, Giuseppe (5 September 2018). Quantum internet: from communication to distributed computing!. NANOCOM ’18 Proceedings of the 5th ACM International Conference on Nanoscale Computing and Communication. Reykjavik, Iceland: ACM. doi:10.1145/3233188.3233224.
  3. ^ Pednault, Edwin; Gunnels, John A.; Nannicini, Giacomo; Horesh, Lior; Magerlein, Thomas; Solomonik, Edgar; Wisnieff, Robert (2017-10-16). “Breaking the 49-Qubit Barrier in the Simulation of Quantum Circuits”. arXiv:1710.05867 [quant-ph].
  4. ^ Jump up to:a b c d e f g h i Van Meter, Rodney (2014). Quantum Networking. Hoboken: Wiley. pp. 127–196. ISBN 9781118648926. OCLC 879947342.
  5. ^ Cramer, J.; Kalb, N.; Rol, M. A.; Hensen, B.; Blok, M. S.; Markham, M.; Twitchen, D. J.; Hanson, R.; Taminiau, T. H. (2016-05-05). “Repeated quantum error correction on a continuously encoded qubit by real-time feedback”. Nature Communications. 7: ncomms11526. arXiv:1508.01388. Bibcode:2016NatCo…711526C. doi:10.1038/ncomms11526. PMC 4858808. PMID 27146630.
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´´The world people need to have very efficient researches and projects resulting in very innovative drugs, vaccines, therapeutical substances, medical devices and other technologies according to the age, the genetics and medical records of the person. So, the treatment, diagnosis and prognosis will be very efficient and better, of course´´. Rodrigo Nunes Cal ´´O mundo precisa ter pesquisas e projetos muito eficientes que resultem em medicamentos, vacinas, substâncias terapêuticas, dispositivos médicos e outras tecnologias muito inovadoras de acordo com a idade, a genética e o prontuário da pessoa. Assim, o tratamento, o diagnóstico e o prognóstico serão bem mais eficientes e melhores, é claro´´. Rodrigo Nunes Cal ´´As you know, the world needs to have very efficient researches resulting new therapeutical substances, medical devices, prevention, diagnostic and prognostic methods, drugs and vaccines, for example. Very detailed researches are fundamental in this process. So, high impact innovations are essential to the world people!!´´ Rodrigo Nunes Cal  ´´Como você sabe, o mundo precisa de pesquisas muito eficientes que resultem em novas substâncias terapêuticas, aparelhos médicos, métodos de prevenção, de diagnósticos e de prognósticos, medicamentos e vacinas, por exemplo. Pesquisas muito detalhadas são fundamentais neste processo, obviamente. Portanto, inovações de grande impacto são essenciais para as pessoas do mundo todo!!´´ Rodrigo Nunes Cal ´´Ter grandes metas, muitas das quais ditas como impossíveis é muito importante porque pode induzir de várias maneiras em diferentes intensidades na sociedade científica mundial o surgimento de grandes descobertas científicas para toda a humanidade, beneficiando significativamente a vida das pessoas e fazendo com que a expectativa de vida humana aumente significativamente. Dessa forma, doenças conhecidas hoje como sendo fatais e incuráveis, podem se tornar doenças curáveis, com a obtenção de novas tecnologias altamente eficazes de prevenção, diagnóstico, prognóstico e de tratamento´´. Rodrigo Nunes Cal ´´Having big goals, many of which are said to be impossible, is very important because it can induce, in different ways, in different intensities in the world scientific society, the emergence of great scientific discoveries for all of humanity, significantly benefiting people's lives and causing the increase of human life expectancy significantly. Thus, diseases known today as being fatal and incurable, can become curable diseases, with the achievement of highly effective prevention, diagnosis, prognosis and treatment technologies´´. Rodrigo Nunes Cal * ´´The very unknown path may be the best path to take in life´´. Rodrigo Nunes Cal ´´O caminho muito desconhecido pode ser o melhor caminho a seguir na vida´´. Rodrigo Nunes Cal ´´A Ciência abre um leque de possibilidades dos mais variados assuntos e dos mais variados níveis de dificuldades. Sendo assim, a compreensão total dos mecanismos fisiológicos envolvidos na patogênese das doenças, destacando-se as doenças fatais que ocorrem em humanos, é de suma importância para a humanidade, com toda certeza. Quem sabe num futuro próximo essa compreensão seja muito bem entendida e quem sabe, como muitas pessoas sonham na imortalidade física, dentre elas cientistas, essa grande conquista pode ser adquirida. Como você sabe, a humanidade necessita urgentemente de novas descobertas científicas, destacando-se a aquisição de medicamentos e vacinas altamente eficazes contra um grande número de doenças, dentre elas as doenças desconhecidas e silenciosas, a obtenção de aparelhos médicos muito eficientes de diagnóstico, prognóstico e tratamento de doenças, entre outros. Com certeza, precisamos ter esperança e motivação para a realização de ótimos trabalhos e para uma qualidade de vida bem melhor e uma expectativa de vida cada vez maior´´. Rodrigo Nunes Cal ´´Science opens up a range of possibilities for the most varied subjects and the most varied levels of difficulties. Therefore, the full understanding of the physiological mechanisms involved in the pathogenesis of diseases, highlighting the fatal diseases that occur in humans, is of paramount importance for humanity, for sure. Maybe in the near future this understanding will be very well understood and who knows, as many people dream of physical immortality, among them scientists, this great achievement can be acquired. As you know, humanity urgently needs new scientific discoveries, highlighting the acquisition of highly effective medicines and vaccines against a large number of diseases, including unknown and silent diseases, obtaining very efficient medical devices for diagnosis, prognosis and treatment of diseases, among others. Certainly, we need to have hope and motivation to do great work and for a much better quality of life and an ever-increasing life expectancy´´. Rodrigo Nunes Cal - Note: The statistics on the number of people who visited this blog in 2018 were not entirely based on real visitors. As estatísticas sobre número de pessoas que acessaram este blog no ano de 2018 não foram totalmente baseadas em visitantes reais. ´´Great difficulties may have come, but it is of great importance to have in mind the possibility of great victories in the future, bringing happiness and health for a long time´´. Rodrigo Nunes Cal ´´O caminho muito desconhecido pode ser o melhor caminho a seguir na vida´´. Rodrigo Nunes Cal ´´Understanding the great difficulties of a given subject can be a very long process, however, of great value for the progress of Science in all aspects´´. Rodrigo Nunes Cal ´´Entender as grandes dificuldades de um determinado assunto pode ser um processo muito longo, mas de grande valor para o progresso da Ciência em todos os seus aspectos´´. Rodrigo Nunes Cal My Curriculum Lattes: http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4240145A2 My Facebook Page: www.facebook.com/scientificblog IT´S A VERY EASY, FAST AND PRACTICAL WAY TO KNOW EXCELLENT INFORMATION ABOUT SCIENCE, TECHNOLOGY AND INNOVATION, AS AN EXAMPLE, APPLYING THE SEARCH MECHANISM Ctrl + F IN THIS BLOG FOR A WORD OR WORDS. SO, THIS BLOG SHARING IS VERY IMPORTANT TO THE WORLD SOCIETY! I hope in some way with this blog to help significantly in the socio-economic and technical-scientific development of the countries. E-mails: rodrigoncal1984@gmail.com rodrigonunescal@yahoo.com calrodrigonunes@gmail.com rodrigoncal1984@yahoo.com ´´NÃO VÁ PARA ONDE O CAMINHO PODE TE LEVAR. VÁ ONDE NÃO HÁ CAMINHO E DEIXE UMA TRILHA. ´´ ´´DON'T GO WHERE THE PATH CAN TAKE YOU. GO WHERE THERE IS NO PATH AND LEAVE A TRAIL. ´´ @ KNOWING THE UNKNOWN.. CONHECENDO O DESCONHECIDO.. The world needs very innovative ideas to people live better and longer more and more. I have been invited as a Speaker/Delegate in numerous International Conferences and Congresses. * DISCOVERING HOW THE INITIAL STAGES OF A CERTAIN DISEASES WORK, SUCH AS A FATAL DISEASES, IS OF HUGE IMPORTANCE FOR SCIENCE, FOR SURE. THERE ARE SEVERAL BIOLOGICAL FACTORS CONNECTED IN THE HUMAN BODY THAT ACTING IN A VERY COMPLEX FORM. THEREFORE, IT IS OF GREAT NECESSITY TO CARRY OUT NEW SCIENTIFIC RESEARCHES MUCH MORE DETAILED AND MODERN, WITH A HIGH DEGREE OF PRECISION, EVEN IF THERE IS NO SIGNIFICANT STATISTICAL DIFFERENCE BETWEEN CERTAIN FACTORS. * DESCOBRIR COMO FUNCIONA OS ESTÁGIOS INICIAIS DE DETERMINADAS DOENÇAS, TAIS COMO AS DOENÇAS FATAIS, É DE ENORME IMPORTÂNCIA PARA A CIÊNCIA , COM CERTEZA. HÁ VÁRIOS FATORES BIOLÓGICOS INTERLIGADOS NO CORPO HUMANO QUE ATUAM DE FORMA MUITO COMPLEXA. PORTANTO, É DE GRANDE NECESSIDADE A REALIZAÇÃO DE NOVAS PESQUISAS CIENTÍFICAS MUITO MAIS MINUCIOSAS E MODERNAS, COM ALTO GRAU DE PRECISÃO, MESMO QUE NÃO HAJA DIFERENÇA ESTATÍSTICA SIGNIFICATIVA ENTRE DETERMINADOS FATORES. * The discussion of certain facts in science envolving stastistics is fundamental to the scientific community, for example, the analysis and interpretation of very important, innovative and interesting graphics with no statistical difference between them can have a big value to the researches and to the future researches. So, the quality and efficiency of researches can increase so much in a little time, increasing the possiblities of excellent references and new scientific discoveries. The facts veracity and the disclosure of them are essential for the scientific community, of course. Reconhecer o(s) erro(s) cometido(s) e não praticá-lo(s) novamente é um ato de grande sabedoria e importância para si mesmo e para a(s) outra(s) pessoa(s). Acknowledging mistakes and not doing them again is an act of great wisdom and importance for yourself and to the other person or people. ´´O IMPOSSÍVEL PODE SER POSSÍVEL´´. ´´THE IMPOSSIBLE CAN BE POSSIBLE´´. I have received positive feedbacks about this blog by LinkedIn, Twitter, Facebook, E-mails and Instagram. ´´EVERYONE DIES. THE GOAL IS NOT TO LIVE FOREVER. THE GOAL S TO CREATE SOMETHING THAT WILL´´ # time #time #internet #technologies #HighTechnologies #Cell Phones #Computer #Notebook  # Television #radio #communication #tempo  #InternetSociety # Society #person # people # age #ages #genetics #longevity #investigations #researches #efficiency #projects #ideas #reference #references #article #articles #journal # journals #magazines #websites #blogs #sites #links #SocialNetworks #energy #graphics #dissertation #monograph #citations #ImpactFactor #pesquisa #pesquisas #tecnologias #DiferentesPercepções #DifferentPerceptions #mind #mente #minds #MentesHumanas #emails #email e-mails reading #MenteHumana leitura mensagem mensagens probabilidade(s) probabilities messages message importance importância relevância assunto(s) subject subjects issue tema reflexão reflections vision visão pioneirismo pionners prêmio(s) prizes awards innovations inovações Grupos de Estudo Grupos Controle saúde doença(s) nome(s) tempo(s) Início da doença - Momento inicial da doença - Momento(s) inicial(ais) da(s) doença(s) humana(s) - Semelhança genética com camundongos - Mice researches - vaccines - drugs - eficiência - medicamento(s) - vacina(s) - High efficiency - Fatal diseases - Doenças fatais - Investments - investimentos - laboratórios - industries - indústrias - laboratories - Centros de Pesquisa - Países - cidades - cities - longevidade - desafio(s) - challenges - gráficos detalhados - interações biológicas - fatores biológicas - análise minuciosa - Very detailed analysis @ Initial moment of disease - Initial moments of human diseases - No Name @ discussion - discussão científica - science facts - detailed graphics - fatos científicos - publicação de trabalhos científicos - publications - hard work - better results - better science - diagnóstico - prognósticos - Diferença Estatística Significativa 100 Diferença Estatística Significativa @ Significant Statistical Difference - V X I Interpretations interpretações intenções intenions countries EU 100 gene Sem genes Cem genes 1 0 0 gene(s) time(s) times 100 limites limite(s) limits 1 0 0 limit NO LIMIT 10 0 @ 100 genes @ 100 gene & NO GENE NO TEMPO NOS TEMPOS NO(S) TEMPO(S) NOS TIMES NO TIME 100 GENE No Time # no time @ nos genes no(s) gene(s) * no(s) limite(s) - words- palavra(s) - listen - write - type - fala - escuta - ler - virtualidade - virtuality - reality - realidade - mundo real - mundo virtual - vida real - virtual life - real life - vida virtual - imaginations - thoughts - pensamento(s) - imaginações - melhoria - improvement - respect - respeito - speak - nome(s) - trabalho(s) - dinheiro - money - team - equipe - objetivo(s) - Best Universities of the World - Scientific Discoveries - Brazil - World - RNA - Cell - DNA - Idade biológica - biological age - pessoas - idade - idade(s) - pessoa - História da Computação Mundial - Harvard - Names - Places - City - researches - scientists - professors - pesquisador(es) - cientistas - professores - professor(es) - Produção científica - Fatores de Impacto - feelings - logic - sentimento(s) - lógica - história - world history - difficulties - dificuldades - Scientific community - comunidade científica mundial - vidas humanas - vida(s) humana(s) - trabalho(s) - human lives - life - human life - única - one life - person people @ momentos - moments memories memory memória longevidade energias energia(s) Many people liked my Twitter and Facebook comments that I informed this blog like great professors, scientists and researchers around the world who work in human health area! Many data about it aren´t in this blog. #database #system #time #data #search #information #InternetHistory #contribuitions #improvement #analysis #intentions Intenções @ #person #people #age #longevity #work #reading #probabilities #energy #money #price #clicks #jobs #country #city #countries #cities #knowledge #HumanInterdependence #WorldHistory #communication #HumanRelations #websites #e-mails #SocialNetworks #ranking #links #images #photos #texts #messages #videos #writing #typing #speak #listen #think #feelings #ideas #ScientificDiscoveries #investigations #researches #articles #ImpactFactors #journals #citations #influence #dissertations #monographs #ScientificWorks #Inventions #graphics #subjects #books #references #blogs ´´Compreender as grandes dificuldades de um determinado assunto pode ser um processo muito demorado, porém, de grande valia para o progresso da Ciência em todos os aspectos´´ Rodrigo Nunes Cal Observação/Note: I won a scholarship by FAPEMIG during the period of ´´my´´ monograph in Uberaba. Ganhei bolsa de estudo pela FAPEMIG durante o período da ´´minha´´ monografia em Uberaba. During the period that I participated of ´´my´´ dissertation at FAMERP, I didn't win a scholarship. Já durante o mestrado que fiz na FAMERP, não ganhei bolsa de estudo. ´´Os gráficos baseados em dados da ´´minha´´ dissertação que fiz podem ser uma excelente referência para muitos tipos de pesquisas e projetos, é claro !! Por exemplo, para pesquisas e projetos que tenham como objetivo analisar os tipos de influências das idades em camundongos e humanos (estudos genéticos, por exemplo) em relação a diferentes estágios de determinadas doenças, como aquelas em que a comunidade científica desconhece (doenças desconhecidas) e que poderão surgir no mundo. Outros tipos de pesquisas e projetos que podem ser feitos são aqueles que analisam a eficácia de diversos tipos de substâncias terapêuticas em camundongos e humanos nos diversos tipos de doenças com o objetivo de saber qual a melhor substância terapêutica para cada doença, levando em consideração a idade e genética, com certeza. Contudo, realizar pesquisas com o objetivo de avaliar qual é a influência da idade e da genética na eficiência terapêutica em animais de experimentação e em humanos, consequentemente, possui um grande valor, já que muitas pessoas adoecem e acabam falecendo mesmo sendo submetidas à ótimos sistemas de diagnóstico, tratamento e prognóstico, dependendo da doença que possui e do estágio da mesma´´. ´´A partir daí, ao comprovar que há influência significativa da idade e da genética, consequentemente, no processo de patogênese de doenças nos animais de experimentação e nos humanos, seria muito mais conveniente e lógico um grupo de indivíduos de certa faixa etária e histórico familiar e individual de doenças adquiridas e possíveis de serem adquiridas no decorrer do tempo serem tratados com outros tipos de medicamentos, substâncias terapêuticas, vacinas, dentre outros. Com certeza, para a realização destes tipos de pesquisa deve haver grande investimento financeiro nos laboratórios a fim de aquisição de aparelhos científicos altamente eficientes. Com certeza, pesquisas à nível genético e com relação à influência da idade do ser vivo na patogênese de doenças, até das doenças desconhecidas pelo mundo científico. O fato é que este tipo de pesquisa é muito importante porque como todos sabem, há muitas doenças que voltam a se manifestar nas pessoas mesmo depois de excelentes tratamentos, dos mais variados tipos. E outro ponto a ser refletido é a permanência de doenças fatais´´. ´´Assim, este tipo de influência da idade e consequentemente da genética na fisiopatologia das doenças hereditárias ou não hereditárias, um indivíduo de uma determinada idade será submetido a um tratamento terapêutico diferente de outro com a mesma doença mas com idade diferente da de até a pesquisa mostrou uma influência significativa na patogênese da doença, portanto, utilizará outro tipo de substância terapêutica, medicamentos, entre outros. Isso certamente acontecerá se a comunidade científica mundial comprovar cientificamente essas hipóteses por meio de várias pesquisas e projetos científicos. As pessoas precisam ter excelentes inovações para a expectativa de vida humana aumentar muito rapidamente cada vez mais. Portanto, quanto mais a medicina personalizada for, melhor será para cada um de nós´´. Rodrigo Nunes Cal ´´The graphics based on data from ´´my´´ dissertation I did can be an excellent reference for many types of researches and projects, of course!! For example, for researches and projects that the goals are analyse the type of influences of ages in mice and human (genetic studies, for example) in relation to different stages of determined diseases, like those that the scientific community do not know about them (unknown diseases). Other types of researches and projects that can be done is those that analyse the efficiency of many types of therapeutical substances in mice and human in many types of diseases with the objective of knowing which is the best therapeutic substance for each disease, taking into account age and genetics, for sure. For example, to carry out research with the objective of evaluating the influence of age and genetics on therapeutic efficiency in experimental animals and in humans´´. ´´Thus, by proving that there is a significant influence of age and genetics, consequently, in the process of pathogenesis of diseases in experimental animals and in humans, it would be much more convenient and logical to have a group of individuals of a certain age group and family and individual history of acquired diseases and possible to be acquired over time being treated with other types of drugs, therapeutic substances, vaccines, among others. Certainly, to carry out these types of research there must be a large financial investment in laboratories in order to acquire highly efficient scientific devices. Certainly, research at the genetic level and regarding the influence of the age of the living being on the pathogenesis of diseases, even diseases unknown to the scientific world. The fact is that this type of research is very important because as everyone knows, there are many diseases that come back to manifest in people even after excellent treatments, of the most varied types. And another point to be reflected on is the permanence of fatal diseases´´. ´´Taking into account this type of influence of age and consequently genetics on the pathophysiology of inherited or not inherited diseases, an individual of a certain age will be submitted to a different therapeutic treatment from another with the same disease but who has a different age than through the research has shown a significant influence on the pathogenesis of the disease, therefore, will use another type of therapeutic substance, medicine, among others. This will certainly happen if the world scientific community scientifically proves these hypotheses through various research and scientific projects. So, the people need to have excellent innovation to the human expectancy  of life increase so much faster more and more´´. Rodrigo Nunes Cal Note/Obs: I thought each person could do their own friend request permission setting since Facebook's technology is so big, for example. Eu achava que cada pessoa poderia fazer sua própria configuração de permissão de solicitação de amizade já que a tecnologia do Facebook é muito grande, por exemplo.

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