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Khalil EM, Berrada K, Abdel-Khalek S, Al-Barakaty A, Peřina J. Entanglement and entropy squeezing in the system of two qubits interacting with a two-mode field in the context of power low potentials. Sci Rep 2020; 10:19600. [PMID: 33177591 PMCID: PMC7659019 DOI: 10.1038/s41598-020-76059-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 09/24/2020] [Indexed: 11/09/2022] Open
Abstract
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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Affiliation(s)
- E M Khalil
- Department of Mathematics and Statistics, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia.,Mathematics Department, Faculty of Science, Azhar University, Cairo, Egypt
| | - K Berrada
- Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia. .,The Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, Miramare, Trieste, Italy.
| | - S Abdel-Khalek
- Department of Mathematics and Statistics, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia.,Mathematics Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - A Al-Barakaty
- Physics Department, The University College at Aljamoum, Umm Al-Qura University, Makkah, Saudi Arabia
| | - J Peřina
- Joint Laboratory of Optics, Department of Optics, Palacký University, 17. Listopadu 50, 77207, Olomouc, Czech Republic
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Ferguson MR, Ficek Z, Dalton BJ. Resonance fluorescence spectra of three-level atoms in a squeezed vacuum. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1996; 54:2379-2390. [PMID: 9913729 DOI: 10.1103/physreva.54.2379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Bosticky M, Ficek Z, Dalton BJ. Probe absorption spectra for driven atomic systems in a narrow bandwidth squeezed vacuum. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1996; 53:4439-4467. [PMID: 9913419 DOI: 10.1103/physreva.53.4439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Joshi A, Puri RR. Steady-state behavior of three-level systems in a broadband squeezed bath. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1992; 45:2025-2030. [PMID: 9907193 DOI: 10.1103/physreva.45.2025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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