Results 21 to 30 of about 71,025 (313)
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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, 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 +5 more sources
Quantum networks reveal quantum nonlocality [PDF]
Nature Communications, 2011 4 + 3 pages, 4 ...
Cavalcanti, D. +3 more
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First Request First Service Entanglement Routing Scheme for Quantum Networks
Entropy, 2022 Quantum networks enable many applications beyond the reach of classical networks by supporting the establishment of long-distance entanglement connections, and are already stepped into the entanglement distribution network stage. The entanglement routing
Si-Chen Li +6 more
doaj +1 more source
Quantum Nonlocality in Any Forked Tree-Shaped Network
Entropy, 2022 In the last decade, much attention has been focused on examining the nonlocality of various quantum networks, which are fundamental for long-distance quantum communications.
Lihua Yang, Xiaofei Qi, Jinchuan Hou
doaj +1 more source
Journal of Physics A: Mathematical and Theoretical, 2012 We introduce a physical approach to social networks (SNs) in which each actor is characterized by a yes-no test on a physical system. This allows us to consider SNs beyond those originated by interactions based on pre-existing properties, as in a classical SN (CSN).
Adán Cabello +4 more
openaire +6 more sources
Exploring Multipartite Steering Effect Using Bell Operators
Entropy, 2019 While Bell operators are exploited in detecting Bell nonlocality and entanglement classification, we demonstrate their usefulness in exploring Einstein−Podolsky−Rosen (EPR) steering, which represents the quantum correlation intermediate ...
Li-Yi Hsu, Shoichi Kawamoto
doaj +1 more source
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
Journal of Computer and System Sciences, 2001 28 pages, 11 figures, To appear in Journal of Computer and System ...
Sanjay Gupta, R. K. P. Zia
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A Faraday laser lasing on Rb 1529 nm transition
Scientific Reports, 2017 We present the design and performance characterization of a Faraday laser directly lasing on the Rb 1529 nm transition (Rb, 5P 3/2 − 4D 5/2) with high stability, narrow spectral linewidth and low cost.
Pengyuan Chang +6 more
doaj +1 more source