Results 31 to 40 of about 25,760 (283)

Effect of random telegraph noise on entanglement and nonlocality of a qubit-qutrit system [PDF]

open access: yesIranian Journal of Astronomy and Astrophysics, 2017
We study the evolution of entanglement and nonlocality of a non-interacting qubit-qutrit system under the effect of random telegraph noise (RTN) in independent and common environments in Markovian and non-Markovian regimes.
Hakimeh Jaghouri, Samira Nazifkar
doaj   +1 more source

Influence of the dissipation on the N-level atom interacting with a two two-level atoms in presence of qubit–qubit interaction

open access: yesScientific Reports, 2021
The interacting of two qubits and an N-level atom based on su(2) Lie algebra in the presence of both qubit–qubit interaction and dissipation term is considered.
S. Abdel-Khalek   +3 more
doaj   +1 more source

Dynamics of Entanglement in Jaynes–Cummings Nodes with Nonidentical Qubit-Field Coupling Strengths

open access: yesEntropy, 2017
How to analytically deal with the general entanglement dynamics of separate Jaynes–Cummings nodes with continuous-variable fields is still an open question, and few analytical approaches can be used to solve their general entanglement dynamics ...
Li-Tuo Shen   +3 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

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

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 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

A study on the sudden death of entanglement [PDF]

open access: yesPhysics Letters A, 2007
The dynamics of entanglement and the phenomenon of entanglement sudden death (ESD) \cite{yu} are discussed in bipartite systems, measured by Wootters Concurrence. Our calculation shows that ESD appears whenever the system is open or closed and is dependent on the initial condition.
Cui, H. T., Li, K., Yi, X. X.
openaire   +3 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

Entanglement between two superconducting garge qubits

open access: yesВестник Самарского университета: Естественнонаучная серия, 2023
In this paper, we investigated the dynamics of entanglement of two identical charge qubits with Josephson junctions in the case when one of the qubits is exposed to a microwave field in a coherent or thermal state. We have found the exact solution of the
Eugene K. Bashkirov
doaj   +1 more source

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