Results 41 to 50 of about 151,398 (252)

Entanglement purification on quantum networks

open access: yesPhysical Review Research, 2023
We present an approach to entanglement purification on complex quantum network architectures, that is, how a quantum network built from repeaters with limited processing fidelity can purify and distribute entanglement between users.
Michelle Victora   +5 more
doaj   +1 more source

Entanglement dynamics in chaotic systems [PDF]

open access: yes, 2004
We study quantum chaos for systems with more than one degree of freedom, for which we present an analysis of the dynamics of entanglement. Our analysis explains the main features of entanglement dynamics and identifies entanglement-based signatures of ...
Ghose, Shohini, Sanders, Barry C.
core   +4 more sources

How discord underlies the noise resilience of quantum illumination

open access: yesNew 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
doaj   +1 more source

Entanglement and quantum correlation measures for quantum multipartite mixed states

open access: yesScientific Reports, 2023
Entanglement, and quantum correlation, are precious resources for quantum technologies implementation based on quantum information science, such as quantum communication, quantum computing, and quantum interferometry. Nevertheless, to our best knowledge,
Arthur Vesperini   +2 more
doaj   +1 more source

General polygamy inequality of multi-party quantum entanglement

open access: yes, 2012
Using entanglement of assistance, we establish a general polygamy inequality of multi-party entanglement in arbitrary dimensional quantum systems. For multi-party closed quantum systems, we relate our result with the monogamy of entanglement to show that
C. Bennett, Jeong San Kim, T. Laustsen
core   +1 more source

Quantum entanglement of nanocantilevers [PDF]

open access: yesPhysical Review A, 2010
10 pages, 8 ...
Patrik Ă–hberg   +5 more
openaire   +3 more sources

Quantum entanglement in time [PDF]

open access: yesAIP Conference Proceedings, 2017
10 pages, 2 figures. An extended version of a conference paper. To appear in Quantum Retrocausation III (AIP Conference Proceedings edited by Daniel P. Sheehan)
openaire   +3 more sources

Detecting quantum entanglement

open access: yesTheoretical 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.
openaire   +2 more sources

Entanglement in quantum catastrophes [PDF]

open access: yesPhysical Review A, 2005
We classify entanglement singularities for various two-mode bosonic systems in terms of catastrophe theory. Employing an abstract phase-space representation, we obtain exact results in limiting cases for the entropy in cusp, butterfly, and two-dimensional catastrophes.
Clive Emary   +2 more
openaire   +3 more sources

Quantum Entanglement: Spooky Action at a Distance

open access: yesQuanta, 2020
Quantum entanglement is an important resource in quantum information technologies. Here, we study and characterize in a precise mathematical language some of the weird and nonintuitive features of quantum entanglement.
Stan Gudder
doaj   +1 more source

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