Results 41 to 50 of about 7,850,693 (333)
A quantum access network [PDF]
Nature, 2013 The theoretically proven security of quantum key distribution (QKD) could revolutionise how information exchange is protected in the future. Several field tests of QKD have proven it to be a reliable technology for cryptographic key exchange and have demonstrated nodal networks of point-to-point links.
Bernd Fröhlich +5 more
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Frontiers in Physics, 2022 Quantum information networks can transmit quantum states and perform quantum operations between different quantum network nodes, which are essential for various applications of quantum information technology in the future.
Yu-Hong Han +10 more
doaj +1 more source
Policies for elementary links in a quantum network [PDF]
Quantum, 2020 Distributing entanglement over long distances is one of the central tasks in quantum networks. An important problem, especially for near-term quantum networks, is to develop optimal entanglement distribution protocols that take into account the ...
Sumeet Khatri
semanticscholar +1 more source
Quantum networks reveal quantum nonlocality [PDF]
Nature Communications, 2011 4 + 3 pages, 4 ...
Cavalcanti, D. +3 more
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Quantum, 2023 The topology of classical networks is determined by physical links between nodes, and after a network request the links are used to establish the desired connections. Quantum networks offer the possibility to generate different kinds of entanglement prior to network requests, which can substitute links and allow one to fulfill multiple network requests
Jorge Miguel-Ramiro +2 more
openaire +3 more sources
Graph Entropy Associated with Multilevel Atomic Excitation
Proceedings, 2020 A graph-model is presented to describe multilevel atomic structure. As an example, we take the double Λ configuration in alkali-metal atoms with hyperfine structure and nuclear spin I = 3 / 2 , as a graph with four vertices.
Abu Mohamed Alhasan
doaj +1 more source
Applied Sciences, 2022 Quantum repeater is a key component of quantum network, and atomic memory is one of the important candidates for constructing quantum repeater. However, the atomic transition wavelength is not suitable for long-distance transmission in optical fiber.
Shujing Li +4 more
doaj +1 more source
, 2007 Since quantum information is continuous, its handling is sometimes surprisingly harder than the classical counterpart. A typical example is cloning; making a copy of digital information is straightforward but it is not possible exactly for quantum information. The question in this paper is whether or not quantum network coding is possible.
Hayashi, Masahito +4 more
openaire +4 more sources
Detection of Network and Genuine Network Quantum Steering [PDF]
Results in Physics, 56, 2024, 2023 The quantum network correlations play significant roles in long distance quantum communication,quantum cryptography and distributed quantum computing. Generally it is very difficult to characterize the multipartite quantum network correlations such as nonlocality, entanglement and steering.
arxiv +1 more source
Entanglement Distribution in a Quantum Network: A Multicommodity Flow-Based Approach [PDF]
IEEE Transactions on Quantum Engineering, 2020 We consider the problem of optimizing the achievable EPR-pair distribution rate between multiple source-destination pairs in a quantum Internet, where the repeaters may perform a probabilistic Bell-state measurement and we may impose a minimum end-to-end
Kaushik Chakraborty +3 more
semanticscholar +1 more source