Quantum behaviour of pumped and damped triangular Bose Hubbard systems
arXiv:1707.01000 · doi:10.1016/j.optcom.2017.07.075
Abstract
We propose and analyse analogs of optical cavities for atoms using three-well Bose-Hubbard models with pumping and losses. We consider triangular configurations. With one well pumped and one damped, we find that both the mean-field dynamics and the quantum statistics show a quantitative dependence on the choice of damped well. The systems we analyse remain far from equilibrium, preserving good coherence between the wells in the steady-state. We find quadrature squeezing and mode entanglement for some parameter regimes and demonstrate that the trimer with pumping and damping at the same well is the stronger option for producing non-classical states. Due to recent experimental advances, it should be possible to demonstrate the effects we investigate and predict.
arXiv comment15 pages, 8 figures, theory. arXiv admin note: text overlap with arXiv:1704.04021
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