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Controlling spin current in a trapped Fermi gas.

Publication ,  Journal Article
Du, X; Zhang, Y; Petricka, J; Thomas, JE
Published in: Physical review letters
July 2009

We study fundamental features of spin current in a very weakly interacting Fermi gas of 6Li. By creating a spin current and then reversing its flow, we demonstrate control of the spin current. This reversal is predicted by a spin vector evolution equation in energy representation, which shows how the spin and energy of individual atoms become correlated in the nearly undamped regime of the experiments. The theory provides a simple physical description of the spin current and explains both the large amplitude and the slow temporal evolution of the data. Our results have applications in studying and controlling fundamental spin interactions and spin currents in ultracold gases.

Duke Scholars

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

July 2009

Volume

103

Issue

1

Start / End Page

010401

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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ICMJE
MLA
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Du, X., Zhang, Y., Petricka, J., & Thomas, J. E. (2009). Controlling spin current in a trapped Fermi gas. Physical Review Letters, 103(1), 010401. https://doi.org/10.1103/physrevlett.103.010401
Du, X., Y. Zhang, J. Petricka, and J. E. Thomas. “Controlling spin current in a trapped Fermi gas.Physical Review Letters 103, no. 1 (July 2009): 010401. https://doi.org/10.1103/physrevlett.103.010401.
Du X, Zhang Y, Petricka J, Thomas JE. Controlling spin current in a trapped Fermi gas. Physical review letters. 2009 Jul;103(1):010401.
Du, X., et al. “Controlling spin current in a trapped Fermi gas.Physical Review Letters, vol. 103, no. 1, July 2009, p. 010401. Epmc, doi:10.1103/physrevlett.103.010401.
Du X, Zhang Y, Petricka J, Thomas JE. Controlling spin current in a trapped Fermi gas. Physical review letters. 2009 Jul;103(1):010401.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

July 2009

Volume

103

Issue

1

Start / End Page

010401

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences