Measurement-induced disturbance and thermal entanglement in spin models

Details Measurement-induced disturbance and thermal entanglement in spin models Measurement-induced disturbance and thermal entanglement in spin models

2011-01-28

arxiv.org/abs/1101.5512v1

Annals of Physics 326 (2011) 867-875

Physics

Quantum Physics

6 eps figures

Scientific paper

10.1016/j.aop.2010.12.005

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.

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