Speckle Imaging of Spin Fluctuations in a Strongly Interacting Fermi Gas
Quantum Gases
2011-01-28 v1 Atomic Physics
Abstract
Spin fluctuations and density fluctuations are studied for a two-component gas of strongly interacting fermions along the BEC-BCS crossover. This is done by in-situ imaging of dispersive speckle patterns. Compressibility and magnetic susceptibility are determined from the measured fluctuations. This new sensitive method easily resolves a tenfold suppression of spin fluctuations below shot noise due to pairing, and can be applied to novel magnetic phases in optical lattices.
Keywords
Cite
@article{arxiv.1010.1874,
title = {Speckle Imaging of Spin Fluctuations in a Strongly Interacting Fermi Gas},
author = {Christian Sanner and Edward J. Su and Aviv Keshet and Wujie Huang and Jonathon Gillen and Ralf Gommers and Wolfgang Ketterle},
journal= {arXiv preprint arXiv:1010.1874},
year = {2011}
}