Coherence oscillations between weakly coupled Bose-Hubbard dimers
arXiv:1405.2508 · doi:10.1103/PhysRevA.89.053629
Abstract
We study theoretically the dynamics of two weakly-coupled Bose-Josephson junctions, prepared with the same particle number and Josephson excitation number but with different reduced one-particle purity . A novel 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.
9 pages, 10 figures
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