Measurement-induced disturbance and thermal entanglement in spin models |
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| Authors: | Guo-Feng Zhang Zhao-Tan Jiang Ahmad Abliz |
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| Institution: | aDepartment of Physics, School of Physics and Nuclear Energy Engineering, Beijing University of Aeronautics and Astronautics, Xueyuan Road No. 37, Beijing 100191, PR China;bDepartment of Physics, Oklahoma State University, Stillwater, OK 74078, USA;cDepartment of Physics, Beijing Institute of Technology, Beijing 100081, PR China;dSchool of Mathematics, Physics and Informatics, Xinjiang Normal University, Urumchi 830054, PR China |
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| 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. |
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| Keywords: | Measurement-induced disturbance Quantum thermal concurrence Spin model |
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