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Cold, dilute, trapped bosons as an open quantum system

James Anglin
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Abstract

We present a master equation governing the reduced density operator for a single trapped mode of a cold, dilute, weakly interacting Bose gas; and we obtain an operator fluctuation-dissipation relation in which the Ginzburg-Landau effective potential plays a physically transparent role. We also identify a decoherence effect that tends to preserve symmetry, even when the effective potential has a ``Mexican hat'' form.

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James Anglin. 1996-11-06. Cold, dilute, trapped bosons as an open quantum system. https://doi.org/10.1103/physrevlett.79.6

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