Abstract
This article explores the concurrence in a two-qubit Heisenberg XXX model with Dzyaloshinskii–Moriya (DM) and Kaplan–Shekhtman–Entin-Wohlman–Aharony (KSEA) interactions. The concurrence expression was developed using the physical variables connected with the chosen system. Our results indicate that the temperature, the spin coupling constant, the x-components of the DM and KSEA interactions may all play a role in determining the degree of intricacy between states. Additionally, these findings imply that the separability of states is obtained at high-temperature domains or by switching the spin coupling. In contrast, the entanglement of states may be achieved at low temperatures or by using high values of the x-components of the DM and KSEA parameters. Furthermore, the DM and KSEA interactions have an identical effect on the concurrence behaviors at high temperatures.
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Acknowledgements
Our sincere gratitude goes to Mohamed Monkad, head of the Laboratory for Physics of Condensed Matter (LPMC) in the Faculty of Sciences at Chouaïb Doukkali University, for his essential assistance.
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Houça, R., Choubabi, E.B., Bouziani, M.E. et al. Entanglement in a two-qubit Heisenberg XXX model with x-components of Dzyaloshinskii–Moriya and Kaplan–Shekhtman–Entin-Wohlman–Aharony interactions. Quantum Inf Process 21, 200 (2022). https://doi.org/10.1007/s11128-022-03544-3
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DOI: https://doi.org/10.1007/s11128-022-03544-3