Steered quantum coherence and quantum Fisher information in spin-chain system
arXiv:2312.09531
Abstract
In this paper, we investigate steered quantum coherence, i.e., the norm of steered coherence and the relative entropy of steered coherence, and the quantum Fisher information in the Gibbs state of two-qubit 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 model are presented.
13 pages, 10 figures