Realization of an excited, strongly correlated quantum gas phase

Haller, Elmar and Gustavsson, Mattias and Mark, Manfred J. and Danzl, Johann G. and Hart, Russell and Pupillo, Guido and Nägerl, Hanns-Christoph (2009) Realization of an excited, strongly correlated quantum gas phase. Science, 325 (5945). pp. 1224-1227. ISSN 1095-9203

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Abstract

Ultracold atomic physics offers myriad possibilities to study strongly correlated many-body systems in lower dimensions. Typically, only ground-state phases are accessible. Using a tunable quantum gas of bosonic cesium atoms, we realized and controlled in one-dimensional geometry a highly excited quantum phase that is stabilized in the presence of attractive interactions by maintaining and strengthening quantum correlations across a confinement-induced resonance. We diagnosed the crossover from repulsive to attractive interactions in terms of the stiffness and energy of the system. Our results open up the experimental study of metastable, excited, many-body phases with strong correlations and their dynamical properties.

Author(s):Haller, Elmar ORCID: https://orcid.org/0000-0002-7951-1721, Gustavsson, Mattias, Mark, Manfred J., Danzl, Johann G., Hart, Russell, Pupillo, Guido and Nägerl, Hanns-Christoph
Item type:Article
ID code:43333
Keywords:quantum gas phase , ultracold atomic physics, confinement-induced resonance , bosonic cesium atoms, Optics. Light, General
Subjects:Science > Physics > Optics. Light
Department:Faculty of Science > Physics
Depositing user: Pure Administrator
Date deposited:26 Mar 2013 10:41
Last modified:09 Aug 2019 02:30
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URI:https://strathprints.strath.ac.uk/id/eprint/43333
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