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Dynamics of F=1 spinor condensates at finite temperatures | | Jordi Mur-Petit
; Montserrat Guilleumas
; Artur Polls
; Anna Sanpera
; Maciej Lewenstein
; Kai Bongs
; Klaus Sengstock
; | | Date: |
22 Jul 2005 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | cond-mat.mes-hall | | Abstract: | We investigate the dynamics of a F=1 spinor Bose-Einstein condensate of ^87 Rb atoms confined in a quasi-one-dimensional trap both at zero and at finite temperature. At zero temperature, T=0, we observe coherent oscillations between populations of the various spinor components and multi-fragmentation of the condensate. We study also finite temperature effects in the spinor dynamics taking into account the phase fluctuations in the Bogoliubov-de Gennes framework. At finite T, despite complex multi-fragmentation of the condensate, population equipartition occurs. The length scale of the multi-fragmentation seems to be determined intrinsically by non-linear interactions. | | Source: | arXiv, cond-mat/0507521 | | Services: | Forum | Review | PDF | Favorites | |
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