Spin relaxation in an ultracold spin-orbit-coupled40K gas

  title={Spin relaxation in an ultracold spin-orbit-coupled40K gas},
  author={T Yu and M. W. Wu},
  journal={Physical Review A},
  • T. Yu, M. W. Wu
  • Published 3 September 2013
  • Physics
  • Physical Review A
We report the anomalous Dyakonov-Perel' spin relaxation in ultracold spin-orbit coupled $^{40}$K gas when the coupling between $|9/2,9/2\ >$ and $|9/2,7/2\ >$ states (atcing as the effective Zeeman magnetic field) is much stronger than the spin-orbit coupled field. Both the transverse and longitudinal spin relaxations are investigated with small and large spin polarizations. It is found that with small spin polarization, the transverse (longitudinal) spin relaxation is divided into four (two… 
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