Revivals in the attractive BEC in a double-well potential and their decoherence

Details Revivals in the attractive BEC in a double-well potential and their decoherence Revivals in the attractive BEC in a double-well potential and their decoherence

2010-10-28

arxiv.org/abs/1010.5923v2

Phys. Rev. A 83, 033606 (2011)

Physics

Condensed Matter

Quantum Gases

Scientific paper

We study the dynamics of ultracold attractive atoms in a weakly linked two potential wells. We consider an unbalanced initial state and monitor dynamics of the population difference between the two wells. The average imbalance between wells undergoes damped oscillations, like in a classical counterpart, but then it revives almost to the initial value. We explain in details the whole behavior using three different models of the system. Furthermore we investigate the sensitivity of the revivals on the decoherence caused by one- and three-body losses. We include the dissipative processes using appropriate master equations and solve them using the stochastic wave approximation method.

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