Suppression of Density Fluctuations in a Quantum Degenerate Fermi Gas
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 provid...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2011
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| Online Access: | http://hdl.handle.net/1721.1/60700 https://orcid.org/0000-0002-9717-129X https://orcid.org/0000-0002-9528-3044 |
| _version_ | 1826198538508304384 |
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| author | Sanner, Christian Burkhard Su, Edward Joseph Keshet, Aviv Gommers, Ralf Shin, Yong-il Huang, Wujie Ketterle, Wolfgang |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Sanner, Christian Burkhard Su, Edward Joseph Keshet, Aviv Gommers, Ralf Shin, Yong-il Huang, Wujie Ketterle, Wolfgang |
| author_sort | Sanner, Christian Burkhard |
| collection | MIT |
| description | 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. |
| first_indexed | 2024-09-23T11:06:26Z |
| format | Article |
| id | mit-1721.1/60700 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:06:26Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/607002022-10-01T01:15:15Z Suppression of Density Fluctuations in a Quantum Degenerate Fermi Gas Sanner, Christian Burkhard Su, Edward Joseph Keshet, Aviv Gommers, Ralf Shin, Yong-il Huang, Wujie Ketterle, Wolfgang Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Research Laboratory of Electronics Ketterle, Wolfgang Sanner, Christian Burkhard Su, Edward Joseph Keshet, Aviv Gommers, Ralf Shin, Yong-il Huang, Wujie Ketterle, Wolfgang 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. United States. Air Force Office of Scientific Research (MURI) United States. Army Research Office (Grant No. W911NF-07-1-0493) 2011-01-24T15:48:50Z 2011-01-24T15:48:50Z 2010-07 2010-05 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/60700 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 https://orcid.org/0000-0002-9717-129X https://orcid.org/0000-0002-9528-3044 en_US http://dx.doi.org/10.1103/PhysRevLett.105.040402 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Sanner, Christian Burkhard Su, Edward Joseph Keshet, Aviv Gommers, Ralf Shin, Yong-il Huang, Wujie Ketterle, Wolfgang Suppression of Density Fluctuations in a Quantum Degenerate Fermi Gas |
| title | Suppression of Density Fluctuations in a Quantum Degenerate Fermi Gas |
| title_full | Suppression of Density Fluctuations in a Quantum Degenerate Fermi Gas |
| title_fullStr | Suppression of Density Fluctuations in a Quantum Degenerate Fermi Gas |
| title_full_unstemmed | Suppression of Density Fluctuations in a Quantum Degenerate Fermi Gas |
| title_short | Suppression of Density Fluctuations in a Quantum Degenerate Fermi Gas |
| title_sort | suppression of density fluctuations in a quantum degenerate fermi gas |
| url | http://hdl.handle.net/1721.1/60700 https://orcid.org/0000-0002-9717-129X https://orcid.org/0000-0002-9528-3044 |
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