Entanglement in the classical limit: Quantum correlations from classical probabilities

Journal Article · Mon Aug 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.84.022111· OSTI ID:22068489

Matzkin, A ^[1]

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1. LPTM (CNRS Unite 8089), Universite de Cergy-Pontoise, F-95302 Cergy-Pontoise Cedex (France)

We investigate entanglement for a composite closed system endowed with a scaling property which allows the dynamics to be kept invariant while the effective Planck constant ({Dirac_h}/2{pi}){sub eff} of the system is varied. Entanglement increases as ({Dirac_h}/2{pi}){sub eff}{yields}0. Moreover, for sufficiently low ({Dirac_h}/2{pi}){sub eff} the evolution of the quantum correlations, encapsulated, for example, in the quantum discord, can be obtained from the mutual information of the corresponding classical system. We show this behavior is due to the local suppression of path interferences in the interaction that generates the entanglement.

• OSTI ID: 22068489
• Journal Information: Physical Review. A, Vol. 84, Issue 2; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CORRELATIONS
INTERACTIONS
INTERFERENCE
PROBABILITY
QUANTUM ENTANGLEMENT
QUANTUM INFORMATION