Spin transport in cold Fermi gases: A pseudogap interpretation of spin diffusion experiments at unitarity

@article{Wulin2011SpinTI,
  title={Spin transport in cold Fermi gases: A pseudogap interpretation of spin diffusion experiments at unitarity},
  author={Dan Wulin and Hao Guo and Chih-Chun Chien and Kathryn Levin},
  journal={Physical Review A},
  year={2011},
  volume={83}
}
We address recent spin transport experiments in ultracold unitary Fermi gases. We provide a theoretical understanding for how the measured temperature dependence of the spin diffusivity at low T can disagree with the expected behavior of a Fermi liquid (FL), while the spin susceptiblity, following the experimental protocols, is consistent with a FL picture. We show that the experimental protocols for extracting the spin susceptibility implicitly reflect a FL viewpoint; relaxing this leads to… Expand

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