Confinement-Induced Resonances in Low-Dimensional Quantum Systems

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Autor/in:
Erscheinungsjahr:
2010
Medientyp:
Text
Schlagworte:
  • Lattices
  • Gases
  • Harmonic trap
  • Atoms
  • Bose-Einstein Condensates
  • Lattices
  • Gases
  • Harmonic trap
  • Atoms
  • Bose-Einstein Condensates
Beschreibung:
  • 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. © 2010 The American Physical Society.
Lizenz:
  • info:eu-repo/semantics/closedAccess
Quellsystem:
Forschungsinformationssystem der UHH
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oai:www.edit.fis.uni-hamburg.de:publications/0c309373-8be2-4538-a6b9-6a3379746723