Basis-independent quantum coherence and its distribution in spin chains with three-site interaction

Shaoying Yin, Jie Song, Shutian Liu, Yueyuan Wang, Lin Li and Wenjun Sun

Physica A: Statistical Mechanics and its Applications, 2022, vol. 597, issue C

Abstract: Basis-independent coherence of spin-pairs and its distribution (collective and localized coherence) are studied in spin chains with three-site interaction. Firstly, we demonstrate that three kinds of coherence can correctly characterize the first-order quantum phase transition (QPT) induced by the anisotropy parameter, and the second-order QPT induced by the magnetic field and three-site interaction by their critical behaviors. Secondly, The triangle inequality between the basis-independent coherence and its distribution is verified, and the trade-off relations between the collective and localized coherence are captured by regulating the magnetic field. Lastly, we find that the collective coherence mainly contain the contributions from the classical and quantum correlations by virtue of the anisotropy parameter.

Keywords: Spin-chain model; Quantum coherence; Three-spin interaction; Quantum phase transitions (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:597:y:2022:i:c:s0378437122002187

DOI: 10.1016/j.physa.2022.127239

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