| Issue |
Europhys. Lett.
Volume 67, Number 5, September 2004
|
|
|---|---|---|
| Page(s) | 721 - 727 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i2004-10115-8 | |
| Published online | 01 August 2004 | |
Controlling ultracold atoms in multi-band optical lattices for simulation of Kondo physics
FOCUS center and MCTP, Department of Physics University of Michigan - Ann Arbor, MI 48109, USA
Received:
20
April
2004
Accepted:
16
June
2004
We show that ultracold atoms can be controlled in multi-band optical lattices through spatially periodic Raman pulses for investigation of a class of strongly correlated physics related to the Kondo problem. The underlying dynamics of this system is described by a spin-dependent fermionic or bosonic Kondo-Hubbard lattice model even if we have only spin-independent atomic collision interaction. We solve the bosonic Kondo-Hubbard lattice model through a mean-field approximation, and the result shows a clear phase transition from the ferromagnetic superfluid to the Kondo-singlet insulator at the integer filling.
PACS: 03.75.Mn – Multicomponent condensates; spinor condensates / 03.75.Lm – Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices and topological excitations / 03.75.Ss – Degenerate Fermi gases
© EDP Sciences, 2004
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.