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Fully Frustrated Cold Atoms

Marco Polini·Rosario Fazio·A. H. MacDonald·M. P. Tosi
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Abstract

Fully frustrated Josephson Junction arrays (FF-JJA's) exhibit a subtle compound phase transition in which an Ising transition associated with discrete broken translational symmetry and a Berezinskii-Kosterlitz-Thouless (BKT) transition associated with quasi-long-range phase coherence occur nearly simultaneously. In this Letter we discuss a cold atom realization of the FF-JJA system. We demonstrate that both orders can be studied by standard momentum-distribution-function measurements and present numerical results, based on a successful self-consistent spin-wave approximation, that illustrate the expected behavior of observables.

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Marco Polini, Rosario Fazio, A. H. MacDonald, M. P. Tosi. 2005-01-17. Fully Frustrated Cold Atoms. https://doi.org/10.1103/physrevlett.95.010401

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