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19 April 2024

» arxiv » arxiv.0706.2259

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Non-equilibrium coherence dynamics in one-dimensional Bose gases
S. Hofferberth ; I. Lesanovsky ; B. Fischer ; T. Schumm ; J. Schmiedmayer ;
Date:	15 Jun 2007
Abstract:	We study universal properties of non-equilibrium dynamics and coherence decay in one-dimensional quantum systems. By dynamic splitting of a single 1d quasi Bose-Einstein condensate we create two identical copies in a phase coherent state. If the two systems are completely isolated, we observe a sub-exponential coherence decay towards thermal equilibrium as predicted from the Luttinger liquid model. For tunnel coupled systems we observe decay to a finite coherence, the matter wave equivalent to phase locking of two individual lasers.
Source:	arXiv, arxiv.0706.2259
Other source:	[GID 828513] pmid17882216
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