Results 21 to 30 of about 5,045,379 (328)

Entanglement in a squeezed two-level atom [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2001
In the previous paper, we adopted the method using quantum mutual entropy to measure the degree of entanglement in the time development of the Jaynes-Cummings model. In this paper, we formulate the entanglement in the time development of the Jaynes-Cummings model with squeezed states, and then show that the entanglement can be controlled by means of ...
Furuichi, Shigeru, Abdel-Aty, Mahmoud
openaire   +3 more sources

Influence of detuning and Kerr nonlinearity on atom-atom entanglement in the double two-photon Jaynes–Cummings model

open access: yesФизика волновых процессов и радиотехнические системы, 2021
In this work, the authors investigated the dynamics of entanglement of two identical two-level atoms (qubits) in the framework of the two-photon double Jaynes–Cummings model, taking into account the detuning between atoms and the double frequency of the ...
Rodion K. Zakharov, Evgeny K. Bashkirov
doaj   +1 more source

Measuring the pth-Order Correlation Function of Light Field via Two-Level Atoms

open access: yesPhotonics, 2022
In this paper, we present a method for measuring arbitrary-order correlation functions of the light field using a two-level atomic system. Theoretically, light field information should be mapped onto the atomic system after the light interacts with the ...
Wangjun Lu, Cuilu Zhai, Shiqing Tang
doaj   +1 more source

Manipulating entanglement sudden death in two coupled two-level atoms interacting off-resonance with a radiation field: an exact treatment. [PDF]

open access: yesOptics Express, 2019
We study a model of two coupled two-level atoms (qubits) interacting off-resonance (at non-zero detuning) with a single mode radiation field. This system is of special interest in the field of quantum information processing (QIP) and can be realized in ...
G. Sadiek, Wiam Al-Drees, M. Abdallah
semanticscholar   +1 more source

Exploring the teleported information in two two-level atoms interacting with a deformed cavity field

open access: yesAlexandria Engineering Journal, 2023
The possibility of teleporting a single-qubit system in an atomic system that interacts with a deformed cavity mode is being discussed. The average fidelity is used to investigate the quality of the teleported information in either ideal or deformed ...
Taher S. Hassan   +2 more
doaj   +1 more source

Effect of Mth coherent state on the interaction between two two-level atoms and two-mode quantized field

open access: yesJournal of Taibah University for Science, 2022
The objective of this work is to measure the influence of the Mth coherent state on the optics model of two atoms interacting with two-mode quantized field. Also, two atoms interacting together is included in this optics model.
Abdallah A. Nahla, Anas A. Othman
doaj   +1 more source

Coherent scattering of near-resonant light by a dense, microscopic cloud of cold two-level atoms: Experiment versus theory [PDF]

open access: yes, 2018
We measure the coherent scattering of low-intensity, near-resonant light by a cloud of laser-cooled two-level rubidium atoms with a size comparable to the wavelength of light. We isolate a two-level atomic structure by applying a 300 G magnetic field. We
S. Jennewein   +6 more
semanticscholar   +1 more source

Entanglement dynamics for static two-level atoms in cosmic string spacetime

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We study the entanglement dynamics of two static atoms coupled with a bath of fluctuating scalar fields in vacuum in the cosmic string spacetime. Three different alignments of atoms, i.e.
Pingyang He, Hongwei Yu, Jiawei Hu
doaj   +1 more source

Entanglement of atoms induced by thermal noise in the presence of initial atomic coherence

open access: yesФизика волновых процессов и радиотехнические системы, 2020
In this article, author investigated the dynamics of entanglement of two dipole-coupled natural or artificial two-level atoms (qubits) interacting nonresonantly with the intensive one-mode cavity thermal field.
Evgeny K. Bashkirov
doaj   +1 more source

QED for a Fibrillar Medium of Two-Level Atoms [PDF]

open access: yes, 1996
We consider a fibrillar medium with a continuous distribution of two-level atoms coupled to quantized electromagnetic fields. Perturbation theory is developed based on the current algebra satisfied by the atomic operators. The one-loop corrections to the
A. B. Zamolodchikov   +11 more
core   +2 more sources

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