Suppression of Density Fluctuations in a Quantum Degenerate Fermi Gas
Quantum Gases
2015-03-17 v3 Atomic Physics
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.
Keywords
Cite
@article{arxiv.1005.1309,
title = {Suppression of Density Fluctuations in a Quantum Degenerate Fermi Gas},
author = {Christian Sanner and Edward J. Su and Aviv Keshet and Ralf Gommers and Yong-il Shin and Wujie Huang and Wolfgang Ketterle},
journal= {arXiv preprint arXiv:1005.1309},
year = {2015}
}
Comments
minor edit: fixed technical problem with arxiv's processing of .eps figure