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arXiv · 1405.2508

Coherence oscillations between weakly coupled Bose-Hubbard dimers

Christine Khripkov·Amichay Vardi
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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 $γ$. 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.

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Christine Khripkov, Amichay Vardi. 2014-05-11. Coherence oscillations between weakly coupled Bose-Hubbard dimers. https://doi.org/10.1103/physreva.89.053629

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