Results 51 to 60 of about 853 (152)

Coherent State Control to Recover Quantum Entanglement and Coherence

open access: yesEntropy, 2019
How to analytically deal with the entanglement and coherence dynamics of separated Jaynes−Cummings nodes with continuous-variable fields is still an open question. We here generalize this model to a more common situation including either a small or
Li-Tuo Shen   +2 more
doaj   +1 more source

Acceleration-assisted entanglement harvesting and rangefinding

open access: yesNew Journal of Physics, 2015
We study entanglement harvested from a quantum field through local interaction with Unruh–DeWitt detectors undergoing linear acceleration. The interactions allow entanglement to be swapped locally from the field to the detectors.
Grant Salton   +2 more
doaj   +1 more source

Sudden death of entanglement of two Jaynes–Cummings atoms [PDF]

open access: yesJournal of Physics B: Atomic, Molecular and Optical Physics, 2006
3 pages, 3 ...
Yonac, Muhammed, Yu, Ting, Eberly, J. H.
openaire   +2 more sources

Dynamics of quantum-memory assisted entropic uncertainty and entanglement in two-dimensional graphene

open access: yesAlexandria Engineering Journal, 2023
We explore the quantum-memory assisted entropic uncertainty (QMA-EU), Jensen-Shannon coherence and entanglement dynamics in a Graphene sheet of disordered electrons in the presence of the intrinsic decoherence.
Abdel-Haleem Abdel-Aty   +3 more
doaj   +1 more source

Entanglement harvesting and quantum discord of alpha vacua in de Sitter space

open access: yesJournal of High Energy Physics
The CPT invariant vacuum states of a scalar field in de Sitter space, called α-vacua, are not unique. We explore the α-vacua from the quantum information perspective by a pair of static Unruh-DeWitt (UDW) detectors coupled to a scalar field with either ...
Feng-Li Lin, Sayid Mondal
doaj   +1 more source

Sudden death and revival of Gaussian Einstein–Podolsky–Rosen steering in noisy channels

open access: yesnpj Quantum Information, 2021
Einstein–Podolsky–Rosen (EPR) steering is a useful resource for secure quantum information tasks. It is crucial to investigate the effect of inevitable loss and noise in quantum channels on EPR steering.
Xiaowei Deng   +4 more
doaj   +1 more source

Residual entanglement and sudden death: A direct connection

open access: yesPhysics Letters A, 2011
8 pages, 6 figures, to appear in PLA, DOI information: 10.1016/j.physleta.2011.10 ...
de Oliveira, J.G.G.   +2 more
openaire   +2 more sources

Hawking effect can generate physically inaccessible genuine tripartite nonlocality

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We explore the acceleration effect on the genuine tripartite nonlocality (GTN) for one or two accelerated detector(s) coupled to the vacuum field with initial mixed tripartite states.
Tinggui Zhang, Xin Wang, Shao-Ming Fei
doaj   +1 more source

The dynamics of entangled atoms with two-photon transitions taking into account the Stark shift of energy levels

open access: yesФизика волновых процессов и радиотехнические системы, 2014
The influence of Stark shift on atom-atom entanglement of two identical atoms interacting with mode of electromagnetic field in lossless cavity via degenerate two-photon transitions has been investigated.
E.K. Bashkirov, M.S. Mastyugin
doaj  

Experimental observation of environment-induced sudden death of entanglement [PDF]

open access: yesSPIE Proceedings, 2007
We demonstrate the difference between local, single-particle dynamics and global dynamics of entangled quantum systems coupled to independent environments. Using an all-optical experimental setup, we show that, while the environment-induced decay of each system is asymptotic, quantum entanglement may suddenly disappear.
Almeida, M.P.   +6 more
openaire   +4 more sources

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