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Pauli paramagnetism of an ideal Fermi gas

Author(s)
Lee, Ye-Ryoung; Wang, Tout T.; Choi, Jae-Hoon; Ketterle, Wolfgang; Heo, Myoung-Sun; Rvachov, Timur Michael; ... Show more Show less
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Abstract
We show how to use trapped ultracold atoms to measure the magnetic susceptibility of a two-component Fermi gas. The method is illustrated for a noninteracting gas of [superscript 6]Li, using the tunability of interactions around a wide Feshbach resonance. The susceptibility versus effective magnetic field is directly obtained from the inhomogeneous density profile of the trapped atomic cloud. The wings of the cloud realize the high-field limit where the polarization approaches 100%, which is not accessible for an electron gas.
Date issued
2013-04
URI
http://hdl.handle.net/1721.1/88740
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Research Laboratory of Electronics; MIT-Harvard Center for Ultracold Atoms
Journal
Physical Review A
Publisher
American Physical Society
Citation
Lee, Ye-Ryoung, Tout T. Wang, Timur M. Rvachov, Jae-Hoon Choi, Wolfgang Ketterle, and Myoung-Sun Heo. "Pauli paramagnetism of an ideal Fermi gas." Phys. Rev. A 87, 043629 (April 2013). © 2013 American Physical Society
Version: Final published version
ISSN
1050-2947
1094-1622

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