Quench-induced supercurrents in an annular Bose gas.
Phys Rev Lett
; 113(13): 135302, 2014 Sep 26.
Article
em En
| MEDLINE
| ID: mdl-25302899
ABSTRACT
We create supercurrents in annular two-dimensional Bose gases through a temperature quench of the normal-to-superfluid phase transition. We detect the magnitude and the direction of these supercurrents by measuring spiral patterns resulting from the interference of the cloud with a central reference disk. These measurements demonstrate the stochastic nature of the supercurrents. We further measure their distribution for different quench times and compare it with predictions based on the Kibble-Zurek mechanism.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article