Dephasing of Josephson oscillations between two coupled Bose-Einstein condensates

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dc.creatorPierre, Villain
dc.creatorMaciej, Lewenstein
dc.date1998-08-11
dc.date.accessioned2026-07-07T06:15:32Z
dc.date.available2026-07-07T06:15:32Z
dc.descriptionWe study the dynamics of the relative phase between two Bose-Einstein condensates coupled via collisions and via a Josephson-like coupling. We derive the equations of the motion for the relative phase and the relative number operators from the second quantized Hamiltonian of the system using a quantum field theoretical approach. We distinguish the cases in which the two condensates are in the same trap or in two different traps and study the influence of this difference on the first order correlation function of atomic fields. In identical traps this function does not undergo dephasing. We calculate the dephasing time for the case of different traps.
dc.description14 pages. Submitted to Phys. Rev. A
dc.identifierhttps://arxiv.org/abs/quant-ph/9808017
dc.identifierhttp://arxiv.org/abs/quant-ph/9808017
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/93782
dc.subjectQuantum Physics
dc.titleDephasing of Josephson oscillations between two coupled Bose-Einstein condensates
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