Realization of an excited, strongly correlated quantum gas phase

Elmar Haller, Mattias Gustavsson, Manfred J. Mark, Johann G. Danzl, Russell Hart, Guido Pupillo, Hanns-Christoph Nägerl

Research output: Contribution to journalArticle

333 Citations (Scopus)

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.
LanguageEnglish
Pages1224-1227
Number of pages4
JournalScience
Volume325
Issue number5945
DOIs
Publication statusPublished - 4 Sep 2009

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vapor phases
atomic physics
cesium
stiffness
crossovers
interactions
ground state
geometry
gases
atoms
energy

Keywords

  • quantum gas phase
  • ultracold atomic physics
  • confinement-induced resonance
  • bosonic cesium atoms

Cite this

Haller, E., Gustavsson, M., Mark, M. J., Danzl, J. G., Hart, R., Pupillo, G., & Nägerl, H-C. (2009). Realization of an excited, strongly correlated quantum gas phase. Science, 325(5945), 1224-1227. https://doi.org/10.1126/science.1175850
Haller, Elmar ; Gustavsson, Mattias ; Mark, Manfred J. ; Danzl, Johann G. ; Hart, Russell ; Pupillo, Guido ; Nägerl, Hanns-Christoph. / Realization of an excited, strongly correlated quantum gas phase. In: Science. 2009 ; Vol. 325, No. 5945. pp. 1224-1227.
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Haller, E, Gustavsson, M, Mark, MJ, Danzl, JG, Hart, R, Pupillo, G & Nägerl, H-C 2009, 'Realization of an excited, strongly correlated quantum gas phase' Science, vol. 325, no. 5945, pp. 1224-1227. https://doi.org/10.1126/science.1175850

Realization of an excited, strongly correlated quantum gas phase. / Haller, Elmar; Gustavsson, Mattias; Mark, Manfred J.; Danzl, Johann G.; Hart, Russell; Pupillo, Guido; Nägerl, Hanns-Christoph.

In: Science, Vol. 325, No. 5945, 04.09.2009, p. 1224-1227.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Realization of an excited, strongly correlated quantum gas phase

AU - Haller, Elmar

AU - Gustavsson, Mattias

AU - Mark, Manfred J.

AU - Danzl, Johann G.

AU - Hart, Russell

AU - Pupillo, Guido

AU - Nägerl, Hanns-Christoph

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N2 - 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.

AB - 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.

KW - quantum gas phase

KW - ultracold atomic physics

KW - confinement-induced resonance

KW - bosonic cesium atoms

UR - http://www.ncbi.nlm.nih.gov/pubmed/19729651

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Haller E, Gustavsson M, Mark MJ, Danzl JG, Hart R, Pupillo G et al. Realization of an excited, strongly correlated quantum gas phase. Science. 2009 Sep 4;325(5945):1224-1227. https://doi.org/10.1126/science.1175850