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The Effect of the Multi‐Environment for Quantum Correlation: Geometry Discord vs Quantum Discord
Author(s) -
Ding ChangChun,
Zhu QinSheng,
Wu ShaoYi,
Lai Wei
Publication year - 2017
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.201700014
Subject(s) - quantum discord , quantum correlation , qubit , physics , quantum , correlation , phenomenon , quantum mechanics , negative correlation , quantum entanglement , geometry , mathematics , medicine
A two qubits system interacting with two independent spin‐environments connecting with the third environment is constructed in order to demonstrate the effect of the multi‐environment for quantum correlation. In this process, the freezing phenomenon appears for SCI and X states under Quantum Discord and Geometric Discord measures, respectively, but not for the same initial state measured by different measures. Meanwhile, the properties of the freezing platform, characterized by the collapse, revival and persistent time, are researched by the different parameters. The result of this paper may pave a way to control quantum correlation and design nanospintronic devices.