S. Abdel‐Khalek

Quantum Entanglement and Geometric Phase of Two Moving Two-Level Atoms

2015 · Open Systems & Information Dynamics

An important kind of interaction between two moving two-level atoms and a field mode, where the coupling parameter is taken to be time-dependent, is presented in this paper. Nonlocal correlations between the atoms and the …

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

2021 · Scientific Reports

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. The effects of the qubit-qubit interaction and the dissipation …

Quantum coherence and parameter estimation for mixed entangled coherent states

2022 · Modern Physics Letters A

We study the temporal evolution of quantum coherence and parameter estimation for two-mode coherent-state superposition by using the master equation. Analytic expressions are provided and numerically displayed, which can illustrate the reliance of the coherence …

Coherence, purity and correlation for superconducting charge qubits

2023 · Results in Physics

In a model consisting of two superconducting charge qubits (SC-Qs), we study how the Josephson energy (JE) and temperature have an influence on the coherence, the degree of mixedness, and the nonclassical correlation. In this …