Phase separation and pattern formation in a binary Bose-Einstein condensate
In: Physical review letters, Jg. 107 (2011-06-29), Heft 23
Online
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Zugriff:
The miscibility-immiscibility phase transition in binary Bose-Einstein condensates (BECs) can be controlled by a coupling between the two components. Here we propose a new scheme that uses coupling-induced pattern formation to test the Kibble-Zurek mechanism (KZM) of topological-defect formation in a quantum phase transition. For a binary BEC in a ring trap we find that the number of domains forming the pattern scales with the coupling quench rate with an exponent as predicted by the KZM. For a binary BEC in an elongated harmonic trap we find a different scaling law due to the transition being spatially inhomogeneous. We perform a "simulation" of the harmonically trapped system in a ring trap to verify the scaling exponent.
Comment: 4 pages, 3 figure
| Titel: |
Phase separation and pattern formation in a binary Bose-Einstein condensate
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| Autor/in / Beteiligte Person: | Zurek, Wojciech H. ; Sabbatini, Jacopo ; Davis, Matthew J. |
| Link: | |
| Zeitschrift: | Physical review letters, Jg. 107 (2011-06-29), Heft 23 |
| Veröffentlichung: | 2011 |
| Medientyp: | unknown |
| ISSN: | 1079-7114 (print) |
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