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

Guoyou Wang, Zilong Fan, Haosheng Zeng

Key Laboratory of Low-Dimensional QuantumStructures and Quantum Control of Ministry of Education, Department of Physics, Hunan Normal University, Changsha, China.

DOI: 10.4236/jqis.2013.31008                

Abstract

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.

Keywords

Measurement-Induced Nonlocality; Geometric Discord; Quantum Beat

Conflicts of Interest

The authors declare no conflicts of interest.

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