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

Abstract

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.

Authors:
 [1];  [2]
  1. Clarendon Laboratory, University of Oxford, Oxford OX1 3PU (United Kingdom)
  2. University of Sheffield, Western Bank, Sheffield S10 2TN (United Kingdom)
Publication Date:
OSTI Identifier:
22072163
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 84; Journal Issue: 3; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ATOMS; DIFFRACTION; EFFICIENCY; FERMIONS; LIGHT SCATTERING; PHOTONS; SUPERFLUIDITY; TEMPERATURE MEASUREMENT

Citation Formats

Douglas, James S., and Burnett, Keith. Light scattering from ultracold atomic gases in optical lattices at finite temperature. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.84.033637.
Douglas, James S., & Burnett, Keith. Light scattering from ultracold atomic gases in optical lattices at finite temperature. United States. doi:10.1103/PHYSREVA.84.033637.
Douglas, James S., and Burnett, Keith. Thu . "Light scattering from ultracold atomic gases in optical lattices at finite temperature". United States. doi:10.1103/PHYSREVA.84.033637.
@article{osti_22072163,
title = {Light scattering from ultracold atomic gases in optical lattices at finite temperature},
author = {Douglas, James S. and Burnett, Keith},
abstractNote = {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.},
doi = {10.1103/PHYSREVA.84.033637},
journal = {Physical Review. A},
issn = {1050-2947},
number = 3,
volume = 84,
place = {United States},
year = {2011},
month = {9}
}