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 | English |
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Article number | 053629 |
Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
Volume | 89 |
Issue number | 5 |
DOIs | |
State | Published - 30 May 2014 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics