Pinning quantum phase transition for a Luttinger liquid of strongly interacting bosons

Elmar Haller, Russell Hart, Manfred J. Mark, Johann G. Danzl, Lukas Reichsöllner, Mattias Gustavsson, Marcello Dalmonte, Guido Pupillo and Hanns-Christoph Nägerl ()
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Elmar Haller: Institut für Experimentalphysik und Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, A–6020 Innsbruck, Austria
Russell Hart: Institut für Experimentalphysik und Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, A–6020 Innsbruck, Austria
Manfred J. Mark: Institut für Experimentalphysik und Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, A–6020 Innsbruck, Austria
Johann G. Danzl: Institut für Experimentalphysik und Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, A–6020 Innsbruck, Austria
Lukas Reichsöllner: Institut für Experimentalphysik und Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, A–6020 Innsbruck, Austria
Mattias Gustavsson: Institut für Experimentalphysik und Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, A–6020 Innsbruck, Austria
Marcello Dalmonte: Institut für Theoretische Physik, Universität Innsbruck, Technikerstraße 25, A–6020 Innsbruck, Austria
Guido Pupillo: Institut für Theoretische Physik, Universität Innsbruck, Technikerstraße 25, A–6020 Innsbruck, Austria
Hanns-Christoph Nägerl: Institut für Experimentalphysik und Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, A–6020 Innsbruck, Austria

Nature, 2010, vol. 466, issue 7306, 597-600

Abstract: Show of strength Fluctuations arising from Heisenberg's uncertainty principle enable quantum systems to exhibit phase transitions even at zero temperature. For example, a superfluid-to-insulator transition has been observed for weakly interacting bosonic atomic gases. Here the authors report a novel type of quantum phase transition in a strongly interacting, one-dimensional quantum gas of bosonic caesium atoms. The results open up the experimental study of ultracold gases in a new regime.

Date: 2010
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DOI: 10.1038/nature09259

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