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Title

Competition between vortex unbinding and tunneling in an optical lattice

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Cazalilla, M.
Published in Physical Review. A. 2007, vol. 75, no. 5
Abstract We study a system of two-dimensional Bose gases trapped in minima of a deep one-dimensional optical lattice potential. Increasing the tunneling amplitude between adjacent gases drives a deconfinement transition to a phase where coherence is established between neighboring two-dimensional gases. We compute the signature of this transition in the interference pattern of the system as well as in its rotational response, which provides a direct measurement of the superfluidity in the system
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CAZALILLA, M., IUCCI, Carlos Anibal, GIAMARCHI, Thierry. Competition between vortex unbinding and tunneling in an optical lattice. In: Physical Review. A, 2007, vol. 75, n° 5. https://archive-ouverte.unige.ch/unige:36055

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Deposited on : 2014-04-28

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