Steered quantum coherence and quantum Fisher information in spin-chain
system
- URL: http://arxiv.org/abs/2312.09531v1
- Date: Fri, 15 Dec 2023 04:45:24 GMT
- Title: Steered quantum coherence and quantum Fisher information in spin-chain
system
- Authors: Biao-Liang Ye, Yao-Kun Wang, and Shao-Ming Fei
- Abstract summary: We investigate steered quantum coherence, the relative entropy of steered coherence, and the quantum Fisher information in the Gibbs state of two-qubit $XXZ$ systems.
Their variations with respect to the temperature, external magnetic field, and interaction intensities are analyzed.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: In this paper, we investigate steered quantum coherence, i.e., the $l_1$ norm
of steered coherence and the relative entropy of steered coherence, and the
quantum Fisher information in the Gibbs state of two-qubit $XXZ$ systems. Their
variations with respect to the temperature, external magnetic field, and
interaction intensities are analyzed both analytically and numerically in
detail. The similar behaviors among these three quantum measures in the $XXZ$
model are presented.
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