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

Research output: Contribution to journalArticle

138 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.
LanguageEnglish
Article number153203
Number of pages4
JournalPhysical Review Letters
Volume104
Issue number15
DOIs
Publication statusPublished - 1 Apr 2010

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anisotropy
wave scattering
atoms
signatures
heating
geometry
scattering
gases
interactions

Keywords

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

Cite this

Haller, E., Mark, M. J., Hart, R., Danzl, J. G., Reichsöllner, L., Melezhik, V., ... 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
Haller, Elmar ; Mark, Manfred J. ; Hart, Russell ; Danzl, Johann G. ; Reichsöllner, Lukas ; Melezhik, Vladimir ; Schmelcher, Peter ; Nägerl, Hanns-Christoph. / Confinement-induced resonances in low-dimensional quantum systems. In: Physical Review Letters. 2010 ; Vol. 104, No. 15.
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Haller, E, Mark, MJ, Hart, R, Danzl, JG, Reichsöllner, L, Melezhik, V, Schmelcher, P & Nägerl, H-C 2010, 'Confinement-induced resonances in low-dimensional quantum systems' Physical Review Letters, vol. 104, no. 15, 153203. https://doi.org/10.1103/PhysRevLett.104.153203

Confinement-induced resonances in low-dimensional quantum systems. / Haller, Elmar; Mark, Manfred J.; Hart, Russell; Danzl, Johann G.; Reichsöllner, Lukas; Melezhik, Vladimir; Schmelcher, Peter; Nägerl, Hanns-Christoph.

In: Physical Review Letters, Vol. 104, No. 15, 153203, 01.04.2010.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Confinement-induced resonances in low-dimensional quantum systems

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

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DO - 10.1103/PhysRevLett.104.153203

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VL - 104

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Haller E, Mark MJ, Hart R, Danzl JG, Reichsöllner L, Melezhik V et al. Confinement-induced resonances in low-dimensional quantum systems. Physical Review Letters. 2010 Apr 1;104(15). 153203. https://doi.org/10.1103/PhysRevLett.104.153203