Thermometry and Refrigeration in a Two-Component Mott Insulator of Ultracold Atoms
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Ketterle_Pritchard.pdf
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Author(s)
Weld, David M.
Miyake, Hirokazu
Medley, Patrick M.
Pritchard, David E.
Ketterle, Wolfgang
Date Issued
November 2010
Journal
Physical Review A
Publisher
American Physical Society
Citation
Weld, David M. et al. “Thermometry and refrigeration in a two-component Mott insulator of ultracold atoms.” Physical Review A 82.5 (2010): 051603. © 2010 The American Physical Society.
Version
Final published version
Abstract
Interesting spin Hamiltonians can be realized with ultracold atoms in a two-component Mott insulator (2CMI) [Adv. Phys. 56, 243 (2007); Rev. Mod. Phys. 80, 885 (2008)]. It was recently demonstrated that the application of a magnetic field gradient to the 2CMI enables new techniques of thermometry [Phys. Rev. Lett. 103, 245301 (2009)] and adiabatic cooling [e-print arXiv:1006.4674]. Here we present a theoretical description which provides quantitative analysis of these two techniques. We show that adiabatic reduction of the field gradient is capable of cooling below the Curie or Néel temperature of certain spin-ordered phases.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Research Laboratory of Electronics
MIT-Harvard Center for Ultracold Atoms
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DOI of Published Version
https://doi.org/10.1103/PhysRevA.82.051603
