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Published in: Optical and Quantum Electronics 14/2023

01-12-2023

Entanglement, quantum coherence and quantum Fisher information of two qubit-field systems in the framework of photon-excited coherent states

Authors: S. Abdel-Khalek, M. Algarni, Marin Marin, K. Berrada

Published in: Optical and Quantum Electronics | Issue 14/2023

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Abstract

Based on coherent state theory, the photon-excited coherent states associated with pseudo-harmonic oscillators (PE-CSPHOs) are considered to investigate the interaction between a system of two qubits (two-level atoms) and a radiation field. By considering the dipole–dipole Hamiltonian and Ising Hamiltonian, we solve the Schrödinger equation to examine the influence of the qubit-qubit interaction (Q–QI) on the dynamics of the Q–Q entanglement and the entanglement between the two qubits and field. Furthermore, we study the dynamics of norm coherence and Fisher information, based on symmetric logarithmic derivative, with respect to the physical parameters of the system and explore the relation among the quantifiers during quantum dynamics.

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Appendix
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Metadata
Title
Entanglement, quantum coherence and quantum Fisher information of two qubit-field systems in the framework of photon-excited coherent states
Authors
S. Abdel-Khalek
M. Algarni
Marin Marin
K. Berrada
Publication date
01-12-2023
Publisher
Springer US
Published in
Optical and Quantum Electronics / Issue 14/2023
Print ISSN: 0306-8919
Electronic ISSN: 1572-817X
DOI
https://doi.org/10.1007/s11082-023-05504-2

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