Quantum Entanglement in Open Systems

Journal Article · Thu Jan 24 00:00:00 EST 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2870396· OSTI ID:21052886

Isar, Aurelian ^[1]

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1. Institute of Physics and Nuclear Engineering, Bucharest-Magurele (Romania)

In the framework of the theory of open systems based on completely positive quantum dynamical semigroups, the master equation for two independent harmonic oscillators interacting with an environment is solved in the asymptotic long-time regime. Using the Peres-Simon necessary and sufficient condition for separability of two-mode Gaussian states, we show that the two non-interacting systems become asymptotically entangled for certain environments, so that in the long-time regime they manifest non-local quantum correlations. We calculate also the logarithmic negativity characterizing the degree of entanglement of the asymptotic state.

• OSTI ID: 21052886
• Journal Information: AIP Conference Proceedings, Vol. 972, Issue 1; Conference: Carpathian summer school of physics 2007 on exotic nuclei and nuclear/particle astrophysics (II), Sinaia (Romania), 21-31 Aug 2007; Other Information: DOI: 10.1063/1.2870396; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASYMPTOTIC SOLUTIONS
CORRELATIONS
HARMONIC OSCILLATORS
QUANTUM COMPUTERS
QUANTUM ENTANGLEMENT
QUANTUM MECHANICS