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Stuttgart 2012 – scientific programme

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A: Fachverband Atomphysik

A 45: Kalte Atome

A 45.3: Talk

Friday, March 16, 2012, 11:15–11:30, V7.02

Confinement induced resonance for a driven ultracold atom gas — •Maryam Roghani and Michael Thorwart — I. Institut für Theoretische Physik, Universität Hamburg, Germany

We solve the two-particle s-wave scattering for ultracold atom gases confined in quasi-one-dimensional trapping potential which is periodically driven. The interaction between the atoms is represented in term of the Fermi pseudopotential. For an isotropic harmonic oscillator the decoupling of center of mass and relative degrees of freedom is feasible. We use the Floquet approach to show that new resonance channels open due to the harmonic modulation. Applying the Bethe-Peierls boundary condition, we obtain the general scattering solution. The binding energies and the one dimensional scattering length for this driven system are studied.

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