Entanglement and entropy squeezing in the system of two qubits interacting with a two-mode field in the context of power low potentials

被引:9
|
作者
Khalil, E. M. [1 ,2 ]
Berrada, K. [3 ,4 ]
Abdel-Khalek, S. [1 ,5 ]
Al-Barakaty, A. [6 ]
Perina, J. [7 ]
机构
[1] Taif Univ, Coll Sci, Dept Math & Stat, POB 11099, At Taif 21944, Saudi Arabia
[2] Al Azhar Univ, Fac Sci, Math Dept, Cairo, Egypt
[3] Imam Mohammad Ibn Saud Islamic Univ IMSIU, Coll Sci, Dept Phys, Riyadh, Saudi Arabia
[4] Abdus Salam Int Ctr Theoret Phys, Str Costiera 11, Trieste, Italy
[5] Sohag Univ, Fac Sci, Math Dept, Sohag 82524, Egypt
[6] Umm Al Qura Univ, Univ Coll Aljamoum, Phys Dept, Mecca, Saudi Arabia
[7] Palacky Univ, Dept Opt, Joint Lab Opt, 17 Listopadu 50, Olomouc 77207, Czech Republic
关键词
2-LEVEL ATOM; QUANTUM; RADIATION; EMISSION; COLLAPSE; REVIVAL; PHOTON; STATES;
D O I
10.1038/s41598-020-76059-5
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
We study the dynamics of two non-stationary qubits, allowing for dipole-dipole and Ising-like interplays between them, coupled to quantized fields in the framework of two-mode pair coherent states of power-low potentials. We focus on three particular cases of the coherent states through the exponent parameter taken infinite square, triangular and harmonic potential wells. We examine the possible effects of such features on the evolution of some quantities of current interest, such as population inversion, entanglement among subsystems and squeezing entropy. We show how these quantities can be affected by the qubit-qubit interaction and exponent parameter during the time evolution for both cases of stationary and non-stationary qubits. The obtained results suggest insights about the capability of quantum systems composed of nonstationary qubits to maintain resources in comparison with stationary qubits.
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页数:12
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