1. Quantum scheme of dissipative two qubits in a squeezed field: Entanglement and Fisher information
- Author
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Sayed Abdel-Khalek, Emad E. Mahmoud, Hammad Alotaibi, Eied M. Khalil, M. Higazy, and S. M. Abo-Dahab
- Subjects
Photon ,Field (physics) ,Entanglement quantifier ,Low and high squeezing regime ,020209 energy ,02 engineering and technology ,Quantum entanglement ,01 natural sciences ,010305 fluids & plasmas ,symbols.namesake ,Quantum mechanics ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,Fisher information ,Quantum ,Physics ,Two qubits ,General Engineering ,Time evolution ,Quantum Physics ,Quantum Fisher information ,Engineering (General). Civil engineering (General) ,Qubit ,Dissipative system ,symbols ,TA1-2040 - Abstract
A clear relationship between the quantum version of Fisher information and the bipartite system entanglement has been explored recently. Known existing results for some quantum systems having strongly nonlocal correlations are still limited. In this paper, based on the interaction between a two-qubit and squeezed field, we investigate the correlation between the dynamical behavior of qubit-qubit entanglement and the quantum Fisher information (QFI). We focus on the effect of a number of photon multiplicity, low and high squeezing regime of the field on the dynamics of the QFI and entanglement quantifier. We show how the QFI and entanglement quantifier can be affected by the number of photon multiplicity and squeeze parameter during the time evolution of cases of absence and presence of dissipation effect. Our results exhibit the correlation between the entanglement quantifiers and the QFI with respect to the appearance of collapse and revival phenomena of the atomic inversion.
- Published
- 2021
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