Coherence oscillations between weakly coupled Bose-Hubbard dimers

Christine Khripkov; Amichay Vardi

doi:10.1103/PhysRevA.89.053629

Coherence oscillations between weakly coupled Bose-Hubbard dimers

Christine Khripkov
, Amichay Vardi

Department of Chemistry

Ben-Gurion University of the Negev

Research output: Contribution to journal › Article › peer-review

Abstract

We study theoretically the dynamics of two weakly coupled Bose-Josephson junctions, prepared with the same particle number N and Josephson excitation number ν but with different reduced one-particle purity γ. An entropy oscillation mode is predicted, in which one-particle coherence is transferred between the Bose-Hubbard dimers with no particle or energy transfer. We explain this purity oscillation using a semiclassical picture.

Original language	American English
Article number	053629
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	89
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevA.89.053629
State	Published - 30 May 2014

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.89.053629

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abstract = "We study theoretically the dynamics of two weakly coupled Bose-Josephson junctions, prepared with the same particle number N and Josephson excitation number ν but with different reduced one-particle purity γ. An entropy oscillation mode is predicted, in which one-particle coherence is transferred between the Bose-Hubbard dimers with no particle or energy transfer. We explain this purity oscillation using a semiclassical picture.",

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AB - We study theoretically the dynamics of two weakly coupled Bose-Josephson junctions, prepared with the same particle number N and Josephson excitation number ν but with different reduced one-particle purity γ. An entropy oscillation mode is predicted, in which one-particle coherence is transferred between the Bose-Hubbard dimers with no particle or energy transfer. We explain this purity oscillation using a semiclassical picture.

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U2 - 10.1103/PhysRevA.89.053629

DO - 10.1103/PhysRevA.89.053629

M3 - Article

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JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

IS - 5

M1 - 053629

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Coherence oscillations between weakly coupled Bose-Hubbard dimers

Abstract

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