Measurement-Induced Nonlocality and Geometric Discord in the Spin-Boson Model

Measurement-Induced Nonlocality and Geometric Discord in the Spin-Boson Model

Dynamics of measurement-induced-nonlocality (MIN) and geometric measure of discord (GD) in the spin-boson model is studied. Analytical results show that for two large classes of initial states, MINs are equal but GDs are different. At the end of evolution, MIN and GD initially stored in the spin sys...

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Veröffentlicht in:Journal of quantum information science 2013-03, Vol.3 (1), p.34-41
Hauptverfasser: Wang, Guoyou, Fan, Zilong, Zeng, Haosheng
Format: Artikel
Sprache:eng
Schlagworte:
Correlation
Dynamic tests
Dynamical systems
Dynamics
Evolution
Interference
Mathematical analysis
Reservoirs
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Zusammenfassung:Dynamics of measurement-induced-nonlocality (MIN) and geometric measure of discord (GD) in the spin-boson model is studied. Analytical results show that for two large classes of initial states, MINs are equal but GDs are different. At the end of evolution, MIN and GD initially stored in the spin system transfer completely to reservoirs. The quantum beats for MIN and GD are also found which are the results of quantum interference between two local non-Markovian dynamics via quantum correlation.
ISSN:2162-5751
2162-576X
DOI:10.4236/jqis.2013.31008