Results 41 to 50 of about 26,696 (215)

Influence of Stark Shift on Entanglement of Two Qubits in the Two-Photon Tavis-Cummings Model

open access: yesEPJ Web of Conferences, 2015
Considering two-atom degenerate two-photon Tavis-Cummings model, we investigate the entanglement between two atoms prepared initially in the coherent disentangled states and cavity field prepared in few-photon Fock state, and study the effect of the ...
Mastyugin M.S., Bashkirov E.K.
doaj   +1 more source

Entanglement sudden death and sudden birth in two uncoupled spins [PDF]

open access: yes, 2009
We investigate the entanglement evolution of two qubits interacting with a common environment trough an Heisenberg XX mechanism. We reveal the possibility of realizing the phenomenon of entanglement sudden death as well as the entanglement sudden birth ...
A Messina   +5 more
core   +1 more source

Manipulation of entanglement sudden death in an all-optical setup [PDF]

open access: yes, 2017
The unavoidable and irreversible interaction between an entangled quantum system and its environment causes decoherence of the individual qubits as well as degradation of the entanglement between them.
Ashutosh Singh   +3 more
semanticscholar   +1 more source

Geometry of Entanglement Sudden Death: Explicit Examples [PDF]

open access: yesAIP Conference Proceedings, 2009
Contribution written to the Procceedings of 5th Vaxjo Conference on Foundations of Probability and ...
Raphael C. Drumond   +8 more
openaire   +2 more sources

Two distinguishable impurities in BEC: squeezing and entanglement of two Bose polarons

open access: yesSciPost Physics, 2019
We study entanglement and squeezing of two uncoupled impurities immersed in a Bose-Einstein condensate. We treat them as two quantum Brownian particles interacting with a bath composed of the Bogoliubov modes of the condensate.
Christos Charalambous, Miguel A. Garcia-March, Aniello Lampo, Mohammad Mehboud, Maciej Lewenstein
doaj   +1 more source

Sudden death of entanglement and teleportation fidelity loss via the Unruh effect [PDF]

open access: yes, 2009
We use the Unruh effect to investigate how the teleportation of quantum states is affected when one of the entangled qubits used in the process is under the influence of some external force.
A. G. Landulfo, G. Matsas
semanticscholar   +1 more source

Entanglement dynamics in anti-PT-symmetric systems

open access: yesPhysical Review Research, 2022
In the past years, many efforts have been made to study various noteworthy phenomena in both parity-time (PT) and anti-parity-time (APT) symmetric systems.
Yu-Liang Fang   +7 more
doaj   +1 more source

Dynamics of the entanglement between two oscillators in the same environment [PDF]

open access: yes, 2008
We provide a complete characterization of the evolution of entanglement between two oscillators coupled to a common environment. For initial Gaussian states we identify three phases with different qualitative long time behavior: There is a phase where ...
Paz, Juan Pablo, Roncaglia, Augusto J.
core   +2 more sources

Effects of quantum error correction on entanglement sudden death [PDF]

open access: yesQuantum Information and Computation, 2014
We investigate the effects of error correction on non-local quantum coherence as a function of time, extending the study by Sainz and Bjork. We consider error correction of amplitude damping, pure phase damping and combinations of amplitude and phase damping as they affect both fidelity and quantum entanglement.
Yönaç, Muhammed, Eberly, J. H.
openaire   +2 more sources

Open Quantum Systems in Noninertial Frames [PDF]

open access: yes, 2010
We study the effects of decoherence on the entanglement generated by Unruh effect in noninertial frames by using bit flip, phase damping and depolarizing channels. It is shown that decoherence strongly influences the initial state entanglement.
Khan, M. K., Khan, Salman
core   +1 more source

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