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

doi:10.1126/science.1175850

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

Physics

Research output: Contribution to journal › Article › peer-review

428 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.

Original language	English
Pages (from-to)	1224-1227
Number of pages	4
Journal	Science
Volume	325
Issue number	5945
DOIs	https://doi.org/10.1126/science.1175850
Publication status	Published - 4 Sept 2009

Keywords

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

Access to Document

10.1126/science.1175850

Cite this

@article{4ccc187e6f374db0ada59e086ccf596e,

title = "Realization of an excited, strongly correlated quantum gas phase",

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.",

keywords = "quantum gas phase , ultracold atomic physics, confinement-induced resonance , bosonic cesium atoms",

author = "Elmar Haller and Mattias Gustavsson and Mark, {Manfred J.} and Danzl, {Johann G.} and Russell Hart and Guido Pupillo and Hanns-Christoph N{\"a}gerl",

year = "2009",

month = sep,

day = "4",

doi = "10.1126/science.1175850",

language = "English",

volume = "325",

pages = "1224--1227",

journal = "Science",

issn = "1095-9203",

publisher = "American Association for the Advancement of Science",

number = "5945",

}

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

PY - 2009/9/4

Y1 - 2009/9/4

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

U2 - 10.1126/science.1175850

DO - 10.1126/science.1175850

M3 - Article

SN - 1095-9203

VL - 325

SP - 1224

EP - 1227

JO - Science

JF - Science

IS - 5945

ER -

Realization of an excited, strongly correlated quantum gas phase

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this