Results 1 to 10 of about 3,314 (119)

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

Quantum discord and Fisher information for two-qubit system in the presence of thermal fields

open access: yesAIP Advances, 2023
We consider a double Jaynes–Cummings model for a system of two atoms that interact with a radiation field defined in a thermal spin state. We examine the impact of the parameters of the quantum model on the temporal evolution of quantum discord, quantum ...
M. Algarni, S. Abdel-Khalek, K. Berrada
doaj   +1 more source

Hawking radiation as stimulated emission

open access: yesPhysics Letters B, 2020
We regard the Parikh-Wilczek's tunnelling model of Hawking radiation as a quantum mechanical process of stimulated emission. The hypothesized microstates are found seated at the horizon with double degeneracy. A Jaynes-Cummings toy model for a black hole
Wen-Yu Wen
doaj   +1 more source

Thermal entanglement in a double Jaynes–Cummings model

open access: yesФизика волновых процессов и радиотехнические системы, 2020
In this paper, we have investigated the entanglement dynamics between two initially entangled qubits interacting with two independent thermal cavities modes in the framework of resonant double JaynesCummings model.
Evgeny K. Bashkirov   +1 more
doaj   +1 more source

Quantum Entanglement in Double Quantum Systems and Jaynes-Cummings Model

open access: yesNanoscale Research Letters, 2017
In the paper, we proposed a new approach to producing the qubits in electron transport in low-dimensional structures such as double quantum wells or double quantum wires (DQW).
Paweł Jakubczyk   +2 more
doaj   +1 more source

Entanglement and the factorization-approximation [PDF]

open access: yes, 2001
For a bi-partite quantum system defined in a finite dimensional Hilbert space we investigate in what sense entanglement change and interactions imply each other.
Gemmer, J., Mahler, G.
core   +2 more sources

The linear and nonlinear Jaynes-Cummings model for the multiphoton transition [PDF]

open access: yes, 2017
With the Jaynes-Cummings model, we have studied the atom and light field quantum entanglement of multiphoton transition, and researched the effect of initial state superposition coefficient $C_{1}$, the transition photon number $N$, the quantum discord $\
Xiao-Jing Liu   +11 more
core   +1 more source

Two-photon spectra of quantum emitters [PDF]

open access: yes, 2012
We apply our recently developed theory of frequency-filtered and time-resolved N-photon correlations to study the two-photon spectra of a variety of systems of increasing complexity: single mode emitters with two limiting statistics (one harmonic ...
del Valle, E.   +4 more
core   +4 more sources

q-Boson in Quantum Integrable Systems [PDF]

open access: yes, 2007
q-bosonic realization of the underlying Yang-Baxter algebra is identified for a series of quantum integrable systems, including some new models like two-mode q-bosonic model leading to a coupled two-component derivative NLS model, wide range of q ...
Kundu, Anjan
core   +4 more sources

A path integral for classical dynamics, entanglement, and Jaynes-Cummings model at the quantum-classical divide [PDF]

open access: yes, 2010
The Liouville equation differs from the von Neumann equation 'only' by a characteristic superoperator. We demonstrate this for Hamiltonian dynamics, in general, and for the Jaynes-Cummings model, in particular. -- Employing superspace (instead of Hilbert
Adler S. L.   +7 more
core   +1 more source

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