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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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 |
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| 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: | 29 Nov 2019 05:42 |
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| URI: | https://strathprints.strath.ac.uk/id/eprint/43333 |
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