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arXiv · 0912.3803

Thermometry and signatures of strong correlations from Raman spectroscopy of fermionic atoms in optical lattices

Jean-Sebastien Bernier·Tung-Lam Dao·Corinna Kollath·Antoine Georges·Pablo S. Cornaglia
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Abstract

We propose a method to directly measure the temperature of a gas of weakly interacting fermionic atoms loaded into an optical lattice. This technique relies on Raman spectroscopy and is applicable to experimentally relevant temperature regimes. Additionally, we show that a similar spectroscopy scheme can be used to obtain information on the quasiparticle properties and Hubbard bands of the metallic and Mott-insulating states of interacting fermionic spin mixtures. These two methods provide experimentalists with novel probes to accurately characterize fermionic quantum gases confined to optical lattices.

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Jean-Sebastien Bernier, Tung-Lam Dao, Corinna Kollath, Antoine Georges, Pablo S. Cornaglia. 2009-12-21. Thermometry and signatures of strong correlations from Raman spectroscopy of fermionic atoms in optical lattices. https://doi.org/10.1103/physreva.81.063618

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