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arXiv · 1001.0749

An Ideal Mean-Field Transition in a Modulated Cold Atom System

Myoung-Sun Heo·Yonghee Kim·Kihwan Kim·Geol Moon·Junhyun Lee·Heung-Ryoul Noh·M. I. Dykman·Wonho Jhe
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Abstract

We show that an atomic system in a periodically modulated optical trap displays an ideal mean-field symmetry-breaking transition. The symmetry is broken with respect to time translation by the modulation period. The transition is due to the interplay of the long-range interatomic interaction and nonequilibrium fluctuations. The observed critical dynamics, including anomalous fluctuations in the symmetry broken phase, are fully described by the proposed microscopic theory.

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Myoung-Sun Heo, Yonghee Kim, Kihwan Kim, Geol Moon, Junhyun Lee, Heung-Ryoul Noh, M. I. Dykman, Wonho Jhe. 2010-01-05. An Ideal Mean-Field Transition in a Modulated Cold Atom System. https://doi.org/10.1103/physreve.82.031134

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