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- Title
Sharma-Mittal Quantum Discord in a Two-Qubit Heisenberg XXX Spin-1/2 Chain Under DM And KSEA Interactions.
- Authors
Aroui, A. El; hammou, R. Ben; Habiballah, N.; Nassik, M.
- Abstract
A two-qubit Heisenberg XXX spin chain is considered in the presence of Dzyaloshinskii-Moriya (DM) and Kaplan-Shekhtman-Entin-Wohlman-Aharony (KSEA) interactions. The discord-like quantifiers, specifically, those of the Sharma-Mittal, Renyi discord and Tsallis quantum discord, are used to evaluate Non-classical thermal correlations in this system. Their explicit analytical expressions are found as a function of the thermal state of the studied system. In addition, the behavior of these quantifiers is discussed versus a number of different parameters present in the system. It is shown that the DM and KSEA interactions have a significant effect on the quantum correlations present in the system, while the temperature tends to reduce them, and we deduce specifically that the Sharma-Mittal quantum discord is a faithful quantifier.
- Subjects
QUBITS; QUANTUM correlations
- Publication
Russian Physics Journal, 2024, Vol 67, Issue 2, p202
- ISSN
1064-8887
- Publication type
Article
- DOI
10.1007/s11182-024-03110-7