Measurement-induced disturbance and thermal entanglement in spin models
arXiv:1101.5512 · doi:10.1016/j.aop.2010.12.005
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.
arXiv comment6 eps figures
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