Results in Physics

Quantum memory and coherence dynamics of two dipole-coupled qubits interacting with two cavity fields under decoherence effect

Abdel‐Baset A. Mohamed, Abdel‐Haleem Abdel‐Aty, Hichem Eleuch

Published Aug 20, 2022• 6 citations

Abstract

This paper investigates the intrinsic decoherence effect on quantum memory and coherence dynamics of two dipole-coupled qubits in a non-degenerate bimodel cavity. Entropic uncertainty, entropy, and concurrence are utilized to examine the dynamics of quantum-memory-assisted entropic uncertainty relations, mixedness, and entanglement. The results indicate that the nonlinear interactions between the two qubits and the cavity generate quantum-memory-assisted entropic uncertainty, mixedness, and entanglement, which are reliant not only on the qubit–qubit interaction but also on the intrinsic decoherence and coherence intensity of the initial two-mode cavity states. For specific values of the dipole–dipole interaction, non-classical correlations can be enhanced By reducing the initial intensity coherence, the stability of the quantum memory-assisted entropic uncertainty relations, as well as the two-qubit mixedness of the intrinsic decoherence, are accelerated.

DOI: 10.1016/j.rinp.2022.105924

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