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München 2004 – scientific programme

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Q: Quantenoptik und Photonik

Q 36: Poster Quanteneffekte

Q 36.4: Poster

Thursday, March 25, 2004, 14:00–16:00, Schellingstr. 3

Bloch oscillations of Fermi atoms — •Alexey Ponomarev1,2, Andrey R. Kolovsky1,2, and Andreas Buchleitner11Max-Planck-Institute for the Physics of Complex Systems, D-01187 Dresden — 2Kirensky Institute of Physics, 660036 Krasnoyarsk, Russia

The phenomenon of Bloch oscillations (BOs) is usually discussed in the context of electrons in semiconductor superlattices. Recently, BOs were observed for cold atoms, loaded into an optical lattice. While most of the experimental and theoretical work on atomic BOs deals with spinless atoms, in this present work we address BOs of Fermi atoms. The analysis is performed in terms of the 1D Hubbard model, where the relevant parameters are the filling factors (average number of atoms per lattice site) for spin-up and spin-down atoms.

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