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Entanglement of hard-core bose gas in degenerate levels under local noise

Gedik, Zafer and Karpat, Göktuğ (2010) Entanglement of hard-core bose gas in degenerate levels under local noise. Physica C: Superconductivity and Its Applicaitons (Sp. Iss. SI Suppl. 1), 470 . S945-S946. ISSN 0921-4534

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Abstract

Quantum entanglement properties of the pseudo-spin representation of the BCS model is investigated. In case of degenerate energy levels, where wave functions take a particularly simple form, spontaneous breaking of exchange symmetry under local noise is studied. Even if the Hamiltonian has the same symmetry, it is shown that there is a non-zero probability to end up with a non-symmetric final state. For small systems, total probability for symmetry breaking is found to be inversely proportional to the system size.
Item Type: Article
Uncontrolled Keywords: Quantum decoherence; spontaneous symmetry breaking; mesoscopic superconductivity
Subjects: Q Science > QC Physics > QC170 Atomic physics. Quantum theory.
Divisions: Faculty of Engineering and Natural Sciences > Basic Sciences > Physics
Faculty of Engineering and Natural Sciences
Depositing User: Zafer Gedik
Date Deposited: 01 Dec 2010 14:58
Last Modified: 29 Jul 2019 12:04
URI: https://research.sabanciuniv.edu/id/eprint/15981

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