Results 31 to 40 of about 12,995 (264)
A quantum router architecture for high-fidelity entanglement flows in quantum networks
npj Quantum Information, 2022 The past decade has seen tremendous progress in experimentally realizing the building blocks of quantum repeaters. Repeater architectures with multiplexed quantum memories have been proposed to increase entanglement distribution rates, but an open ...
Yuan Lee +4 more
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How discord underlies the noise resilience of quantum illumination
New Journal of Physics, 2016 The benefits of entanglement can outlast entanglement itself. In quantum illumination, entanglement is employed to better detect reflecting objects in environments so noisy that all entanglement is destroyed.
Christian Weedbrook +4 more
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Entanglement cost of quantum channels [PDF]
2012 IEEE International Symposium on Information Theory Proceedings, 2012 The entanglement cost of a quantum channel is the minimal rate at which entanglement (between sender and receiver) is needed in order to simulate many copies of a quantum channel in the presence of free classical communication. In this paper we show how to express this quantity as a regularised optimisation of the entanglement formation over states ...
Mario Berta +3 more
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QUANTUM ENTANGLEMENT AND SECRECY
International Journal of Modern Physics A, 2001 This was a talk given at the International Conference on Fundamental Sciences, Mathematics and Theoretical Physics, 13-17 March 2000. This talk provides a general introduction to the field of cryptography and touches upon the surface of many activities presently being pursued under the heading of quantum cryptography.
Exert, A +4 more
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Noncommutative metasurfaces enabled diverse quantum path entanglement of structured photons
Opto-Electronic ScienceQuantum entanglement, a fundamental concept in quantum mechanics, lies at the heart of many current and future quantum technologies. A pivotal task is the generation and control of diverse quantum entangled states in a more compact and flexible manner ...
Yan Wang +7 more
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A Quantum Router For The Entangled Web [PDF]
Information Systems Frontiers, 2019 Qubit transmission protocols are presently point-to-point, and thus restrictive in their functionality. A quantum router is necessary for the quantum Internet to become a reality. We present a quantum router design based on teleportation, as well as mechanisms for entangled pair management. The prototype was validated using a quantum simulator.
Bernardo A. Huberman, Bob Lund
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Detecting quantum entanglement
Theoretical Computer Science, 2002 We review the criteria for separability and quantum entanglement, both in a bipartite as well as a multipartite setting. We discuss Bell inequalities, entanglement witnesses, entropic inequalities, bound entanglement and several features of multipartite entanglement.
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The Squashed Entanglement of a Quantum Channel [PDF]
IEEE Transactions on Information Theory, 2014 This paper defines the squashed entanglement of a quantum channel as the maximum squashed entanglement that can be registered by a sender and receiver at the input and output of a quantum channel, respectively. A new subadditivity inequality for the original squashed entanglement measure of Christandl and Winter leads to the conclusion that the ...
Masahiro Takeoka +2 more
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Entanglement of quantum evolutions [PDF]
Physical Review A, 2001 4 Pages, RevTeX. Version accepted by Phys. Rev. A (Rapid Comm.)
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Quantum entanglement and topological entanglement [PDF]
New Journal of Physics, 2002 This paper discusses relationships between topological entanglement and quantum entanglement. Specifically, we propose that it is more fundamental to view topological entanglements such as braids as entanglement operators and to associate with them unitary operators that are capable of creating quantum entanglement.
Louis H Kauffman, Samuel J Lomonaco
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