Revivals in an attractive Bose-Einstein condensate in a double-well potential and their decoherence
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 counterp...
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| Veröffentlicht in: | Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2011-03, Vol.83 (3), Article 033606 |
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| container_title | Physical review. A, Atomic, molecular, and optical physics |
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| creator | Pawłowski, Krzysztof Ziń, Paweł Rzążewski, Kazimierz Trippenbach, Marek |
| description | 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 detail 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. |
| doi_str_mv | 10.1103/PhysRevA.83.033606 |
| format | Article |
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| ispartof | Physical review. A, Atomic, molecular, and optical physics, 2011-03, Vol.83 (3), Article 033606 |
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| source | American Physical Society Journals |
| subjects | APPROXIMATIONS ATOMIC AND MOLECULAR PHYSICS ATOMS BOSE-EINSTEIN CONDENSATION CALCULATION METHODS CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS EQUATIONS MANY-BODY PROBLEM NANOSTRUCTURES OSCILLATIONS POPULATION INVERSION POTENTIALS QUANTUM DECOHERENCE QUANTUM WELLS STOCHASTIC PROCESSES THREE-BODY PROBLEM |
| title | Revivals in an attractive Bose-Einstein condensate in a double-well potential and their decoherence |
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