Suppression of Density Fluctuations in a Quantum Degenerate Fermi Gas

Author(s)
Sanner, Christian Burkhard; Su, Edward Joseph; Keshet, Aviv; Gommers, Ralf; Shin, Yong-il; ... Show more
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Abstract
We study density profiles of an ideal Fermi gas and observe Pauli suppression of density fluctuations (atom shot noise) for cold clouds deep in the quantum degenerate regime. Strong suppression is observed for probe volumes containing more than 10 000 atoms. Measuring the level of suppression provides sensitive thermometry at low temperatures. After this method of sensitive noise measurements has been validated with an ideal Fermi gas, it can now be applied to characterize phase transitions in strongly correlated many-body systems.
Date issued
2010-07
URI
http://hdl.handle.net/1721.1/60700
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Research Laboratory of Electronics
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Sanner, Christian et al. "Suppression of Density Fluctuations in a Quantum Degenerate Fermi Gas." Physical Review Letters 105.4 (2010): 040402. © 2010 The American Physical Society
Version: Final published version
ISSN
0031-9007
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