Light scattering from ultracold atomic gases in optical lattices at finite temperature

Journal Article · Thu Sep 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.84.033637· OSTI ID:22072163

Douglas, James S ^[1]; Burnett, Keith ^[2]

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1. Clarendon Laboratory, University of Oxford, Oxford OX1 3PU (United Kingdom)
2. University of Sheffield, Western Bank, Sheffield S10 2TN (United Kingdom)

We study light scattering from atoms in optical lattices at finite temperature. We examine the light scattered by fermions in the noninteracting regime and by bosons in the superfluid and Mott insulating regimes. We extend previous theoretical studies to include the full band structure of the optical lattice. We find that light scattering that excites atoms out of the lowest band leads to an increase in light scattering away from the classical diffraction peaks and is largely temperature independent. This additional light scattering leads to lower efficiency of temperature measurements based on photon counting.

• OSTI ID: 22072163
• Journal Information: Physical Review. A, Vol. 84, Issue 3; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
DIFFRACTION
EFFICIENCY
FERMIONS
LIGHT SCATTERING
PHOTONS
SUPERFLUIDITY
TEMPERATURE MEASUREMENT