Stückelberg-interferometry with ultra-cold atoms
Institut für Theoretische Physik, Universität
2 Institut für Theoretische Physik and Center for Quantum Dynamics, Universität Heidelberg, Philosophenweg 19, 69120 Heidelberg, Germany
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Received in final form: 10 March 2011
Published online: 9 June 2011
Stückelberg oscillations have been observed in recent experiments with ultra-cold atoms. We show that and how precisely ultra-cold atoms in an accelerated two-band lattice are a controlled realization of Landau-Zener-Stückelberg interferometry. We derive simple formulae for the time-dependent and time-averaged occupation of the energy bands and compute interference patterns for parameters directly accessible in experiments with ultra-cold atoms.
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2011