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Critical velocity of antiferromagnetic spin-1 Bose-Einstein condensates at finite temperature

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Abstract

We study the instability of a moving spinor Bose-Einstein condensate when the speed of flow reaches the critical velocity. This we identify on the basis of Landau’s criterion, i.e. the velocity above which some elementary excitation energy becomes negative. We show that the first-to-become unstable excitations are spin-carrying quasiparticles. We also discuss the temperature dependence of the critical velocity in a more advanced mean-field approximation.

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References

  1. L. Pitaevskii, S. Stringari, Bose–Einstein condensation (Clarendon Press, Oxford, 2003)

  2. C. Raman, Phys. Rev. Lett. 83, 2502 (1999)

    Article  ADS  Google Scholar 

  3. D.E. Miller, et al., Phys. Rev. Lett. 99, 070402 (2007)

    Article  ADS  Google Scholar 

  4. P. Navez, R. Graham, Phys. Rev. A 73, 043612 (2006)

    Article  ADS  Google Scholar 

  5. V.I. Yukalov, E.P. Yukalova, Laser Phys. Lett. 1, 50 (2004)

    Article  ADS  Google Scholar 

  6. T.-L. Ho, Phys. Rev. Lett. 81, 742 (1998)

    Article  ADS  Google Scholar 

  7. T. Ohmi, K. Machida, J. Phys. Soc. Jpn. 67, 1822 (1998)

    Article  ADS  Google Scholar 

  8. D.M. Stamper-Kurn, W. Ketterle, edited by R. Kaiser, C. Westbrook, F. David, Les Houches, Session LXXII, Coherent Atomic Matter Waves (Springer-Verlag, Berlin, 2001), p. 137

  9. A. Crubellier, et al., Eur. Phys. J. D 6, 211 (1999)

    ADS  Google Scholar 

  10. P. Szépfalusy, G. Szirmai, Phys. Rev. A 65, 043602 (2001)

    Article  ADS  Google Scholar 

  11. K. Kis-Szabó, G. Szirmai, P. Szépfalusy, Phys. Lett. A 364, 362 (2007)

    Article  ADS  Google Scholar 

  12. G. Szirmai, P. Szépfalusy, Phys. Rev. A 85, 053603 (2012)

    Article  ADS  Google Scholar 

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Authors and Affiliations

  1. Institute for Solid State Physics and Optics, Wigner Research Centre, Hungarian Academy of Sciences, PO Box 49, 1525, Budapest, Hungary

    Gergely Szirmai

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  1. Gergely Szirmai
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Correspondence to Gergely Szirmai.

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Szirmai, G. Critical velocity of antiferromagnetic spin-1 Bose-Einstein condensates at finite temperature. Eur. Phys. J. Spec. Top. 217, 189–195 (2013). https://doi.org/10.1140/epjst/e2013-01768-4

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  • DOI: https://doi.org/10.1140/epjst/e2013-01768-4

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