Scholarlink

<p>In this paper, we explore the thermal correlations in a&#xa0;two-qubit Heisenberg XXZ spin chain in thermal equilibrium, influenced by Calogero-Moser (CM), Dzyaloshinskii-Moriya (DM), and Kaplan-Shekhtman-Entin-Wohlman-Aharony (KSEA) interactions. To evaluate the non-classical thermal correlations within this framework, we employ the Sharma-Mittal, Renyi, and Tsallis quantum discords. We derive explicit analytical expressions for these quantifiers as functions of the system’s thermal state and analyze their behavior across different parameters. The results obtained demonstrated that the CM, DM, and KSEA interactions significantly affect the quantum correlations, while temperature reduces them. Additionally, the results show that the Sharma-Mittal quantum discord is a&#xa0;faithful quantifier in this work.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Exploring Sharma-Mittal quantum discord in a two-qubit Heisenberg XXZ model with CM, DM, and KSEA interactions

  • 期刊论文

  • 发表日期：

    2026年4月14日

查看全文
  • Rachid Ben Hammou,
  • Abdelkebir El Aroui,
  • Nabil Habiballah,
  • Mostafa Nassik

摘要

In this paper, we explore the thermal correlations in a two-qubit Heisenberg XXZ spin chain in thermal equilibrium, influenced by Calogero-Moser (CM), Dzyaloshinskii-Moriya (DM), and Kaplan-Shekhtman-Entin-Wohlman-Aharony (KSEA) interactions. To evaluate the non-classical thermal correlations within this framework, we employ the Sharma-Mittal, Renyi, and Tsallis quantum discords. We derive explicit analytical expressions for these quantifiers as functions of the system’s thermal state and analyze their behavior across different parameters. The results obtained demonstrated that the CM, DM, and KSEA interactions significantly affect the quantum correlations, while temperature reduces them. Additionally, the results show that the Sharma-Mittal quantum discord is a faithful quantifier in this work.