Abstract
A method is proposed 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, 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 probes to accurately characterize fermionic quantum gases confined to optical lattices.
15 More- Received 21 December 2009
DOI:https://doi.org/10.1103/PhysRevA.81.063618
©2010 American Physical Society
Synopsis
Raman thermometer for fermions
Published 11 June 2010
Raman spectroscopy has been put to use in measuring temperature and correlations of ultracold fermionic atoms loaded into an optical lattice.
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