Cold, dilute, trapped bosons as an open quantum system

Details Cold, dilute, trapped bosons as an open quantum system Cold, dilute, trapped bosons as an open quantum system

1996-11-06

arxiv.org/abs/quant-ph/9611008v1

Phys.Rev.Lett. 79 (1997) 6-9

Physics

Quantum Physics

4 pages, RevTeX twocolumn style

Scientific paper

10.1103/PhysRevLett.79.6

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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