Confinement-induced resonances in low-dimensional quantum systems

Elmar Haller; Manfred J. Mark; Russell Hart; Johann G. Danzl; Lukas Reichsöllner; Vladimir Melezhik; Peter Schmelcher; Hanns-Christoph Nägerl

doi:10.1103/PhysRevLett.104.153203

Confinement-induced resonances in low-dimensional quantum systems

Elmar Haller, Manfred J. Mark, Russell Hart, Johann G. Danzl, Lukas Reichsöllner, Vladimir Melezhik, Peter Schmelcher, Hanns-Christoph Nägerl

Physics

Research output: Contribution to journal › Article

154 Citations (Scopus)

Abstract

We report on the observation of confinement-induced resonances in strongly interacting quantum-gas systems with tunable interactions for one-and two-dimensional geometry. Atom-atom scattering is substantially modified when the s-wave scattering length approaches the length scale associated with the tight transversal confinement, leading to characteristic loss and heating signatures. Upon introducing an anisotropy for the transversal confinement we observe a splitting of the confinement-induced resonance. With increasing anisotropy additional resonances appear. In the limit of a two-dimensional system we find that one resonance persists.

Original language	English
Article number	153203
Number of pages	4
Journal	Physical Review Letters
Volume	104
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.104.153203
Publication status	Published - 1 Apr 2010

Keywords

quantum systems
confinement-induced resonances
quantum-gas systems
anisotropy
photonics

Access to Document

10.1103/PhysRevLett.104.153203

Cite this

Haller, E., Mark, M. J., Hart, R., Danzl, J. G., Reichsöllner, L., Melezhik, V., Schmelcher, P., & Nägerl, H-C. (2010). Confinement-induced resonances in low-dimensional quantum systems. Physical Review Letters, 104(15), [153203]. https://doi.org/10.1103/PhysRevLett.104.153203

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abstract = "We report on the observation of confinement-induced resonances in strongly interacting quantum-gas systems with tunable interactions for one-and two-dimensional geometry. Atom-atom scattering is substantially modified when the s-wave scattering length approaches the length scale associated with the tight transversal confinement, leading to characteristic loss and heating signatures. Upon introducing an anisotropy for the transversal confinement we observe a splitting of the confinement-induced resonance. With increasing anisotropy additional resonances appear. In the limit of a two-dimensional system we find that one resonance persists. ",

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AU - Haller, Elmar

AU - Mark, Manfred J.

AU - Hart, Russell

AU - Danzl, Johann G.

AU - Reichsöllner, Lukas

AU - Melezhik, Vladimir

AU - Schmelcher, Peter

AU - Nägerl, Hanns-Christoph

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N2 - We report on the observation of confinement-induced resonances in strongly interacting quantum-gas systems with tunable interactions for one-and two-dimensional geometry. Atom-atom scattering is substantially modified when the s-wave scattering length approaches the length scale associated with the tight transversal confinement, leading to characteristic loss and heating signatures. Upon introducing an anisotropy for the transversal confinement we observe a splitting of the confinement-induced resonance. With increasing anisotropy additional resonances appear. In the limit of a two-dimensional system we find that one resonance persists.

AB - We report on the observation of confinement-induced resonances in strongly interacting quantum-gas systems with tunable interactions for one-and two-dimensional geometry. Atom-atom scattering is substantially modified when the s-wave scattering length approaches the length scale associated with the tight transversal confinement, leading to characteristic loss and heating signatures. Upon introducing an anisotropy for the transversal confinement we observe a splitting of the confinement-induced resonance. With increasing anisotropy additional resonances appear. In the limit of a two-dimensional system we find that one resonance persists.

KW - quantum systems

KW - confinement-induced resonances

KW - quantum-gas systems

KW - anisotropy

KW - photonics

U2 - 10.1103/PhysRevLett.104.153203

DO - 10.1103/PhysRevLett.104.153203

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JO - Physical Review Letters

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