Non-equilibrium coherence dynamics in one-dimensional Bose gases

S. Hofferberth, I. Lesanovsky, B. Fischer, T. Schumm and J. Schmiedmayer ()
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S. Hofferberth: Physikalisches Institut, Universität Heidelberg, Philosophenweg 12, D-69120 Heidelberg, Germany
I. Lesanovsky: Institut für Theoretische Physik, Universität Innsbruck, Technikerstr. 25, A-6020 Innsbruck, Austria
B. Fischer: Physikalisches Institut, Universität Heidelberg, Philosophenweg 12, D-69120 Heidelberg, Germany
T. Schumm: Atominstitut der Österreichischen Universitäten, TU-Wien, Stadionallee 2, A-1020 Vienna, Austria
J. Schmiedmayer: Physikalisches Institut, Universität Heidelberg, Philosophenweg 12, D-69120 Heidelberg, Germany

Nature, 2007, vol. 449, issue 7160, 324-327

Abstract: This paper reports a direct experimental study of the coherence dynamics in both isolated and coupled degenerate one-dimensional (1D) Bose gases. Completely isolated 1D Bose gases exhibit coherence decay in excellent agreement with recent predictions. The coherence of two coupled 1D Bose gases decays to a finite value, analogous to the phase locking of two lasers by injection.

Date: 2007
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DOI: 10.1038/nature06149

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