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Article Dans Une Revue Physical Review Letters Année : 2005

Coherent collisional spin dynamics in optical lattices

Artur Widera
  • Fonction : Auteur
Fabrice Gerbier
Simon Foelling
  • Fonction : Auteur
Tatjana Gericke
  • Fonction : Auteur
Olaf Mandel
  • Fonction : Auteur
Immanuel Bloch
  • Fonction : Auteur

Résumé

We report on the observation of coherent, purely collisionally driven spin dynamics of neutral atoms in an optical lattice. For high lattice depths, atom pairs confined to the same lattice site show weakly damped Rabi-type oscillations between two-particle Zeeman states of equal magnetization, induced by spin changing collisions. This paves the way towards the efficient creation of robust entangled atom pairs in an optical lattice. Moreover, measurement of the oscillation frequency allows for precise determination of the spin-changing collisional coupling strengths, which are directly related to fundamental scattering lengths describing interatomic collisions at ultracold temperatures.

Dates et versions

hal-00116289 , version 1 (25-11-2006)

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Citer

Artur Widera, Fabrice Gerbier, Simon Foelling, Tatjana Gericke, Olaf Mandel, et al.. Coherent collisional spin dynamics in optical lattices. Physical Review Letters, 2005, 95, pp.190405. ⟨10.1103/PhysRevLett.95.190405⟩. ⟨hal-00116289⟩
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