Measurement-induced disturbance and thermal entanglement in spin models

Journal Article · Fri Apr 15 00:00:00 EDT 2011 · Annals of Physics (New York)

DOI:https://doi.org/10.1016/j.aop.2010.12.005· OSTI ID:21579879

Zhaotan, Jiang ^[1]; Abliz, Ahmad ^[2]

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1. Department of Physics, Beijing Institute of Technology, Beijing 100081 (China)
2. School of Mathematics, Physics and Informatics, Xinjiang Normal University, Urumchi 830054 (China)

Research Highlights: > Quantum correlation (QC) is quantified by measurement-induced disturbance. > The effects of coupling parameters on QC and thermal concurrence (TC) are presented. > We compare QC with TC in spin models and illustrate their different characteristics. - Abstract: Quantum correlation in two-qubit spin models is investigated by use of measurement-induced disturbance [S. Luo, Phys. Rev. A, 77 (2008) 022301]. Its dependences on external magnetic field, spin-spin coupling, and Dzyaloshinski-Moriya (DM) interactions are presented in detail. We also compare measurement-induced disturbance and thermal entanglement in spin models and illustrate their different characteristics.

• OSTI ID: 21579879
• Journal Information: Annals of Physics (New York), Vol. 326, Issue 4; Other Information: DOI: 10.1016/j.aop.2010.12.005; PII: S0003-4916(10)00219-8; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0003-4916
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CORRELATIONS
COUPLING
DISTURBANCES
INTERACTIONS
MAGNETIC FIELDS
QUANTUM ENTANGLEMENT
SPIN
ANGULAR MOMENTUM
PARTICLE PROPERTIES