Effect of environment on quantum correlation in Heisenberg XYZ spin model

Indrajith V.S. and R. Sankaranarayanan

Physica A: Statistical Mechanics and its Applications, 2021, vol. 582, issue C

Abstract: Quantum correlation of bipartite states (beyond entanglement) in presence of environment is studied using measurement-induced nonlocalities (MINs) for Heisenberg XYZ spin system. It is shown that if the system is allowed to exchange energy with environment, the initial state evolves and settles down to uncorrelated state in asymptotic limit. We have also demonstrated that fidelity based MIN is sensitive to such open system, and so useful for characterizing the correlation of the states.

Keywords: Entanglement; Measurement-induced nonlocality; Open quantum system (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:582:y:2021:i:c:s0378437121005239

DOI: 10.1016/j.physa.2021.126250

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