Quantum Hydrodynamics and Turbulence in atomic Bose-Einstein condensates

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• Prof. Makoto Tsubota, Osaka City University
• Friday 24 August 2012, 14:00-15:00
• Physics East 217.

If you have a question about this talk, please contact Elizabeth Blackburn.

We discuss recent important topics in quantum hydrodynamics and turbulence in atomic Bose-Einstein condensates (BECs)[1,2]. Quantum turbulence (QT) was discovered in superfluid 4He in the 1950s. Quantum turbulence is comprised of quantized vortices that are definite topological defects arising from the order parameter appearing in Bose-Einstein condensation. Quantum hydrodynamics and turbulence are still studied actively in superfluid 4He and 3He, but the realization of atomic Bose-Einstein condensation in 1995 has proposed another important stage for this issue. A general introduction to this issue and a brief review of the basic concepts are followed by the recent developments. I will discuss some of the interesting topics:

(1) Vortex lattice formation in a rotating BEC [3].

(2) Binary QT in two-component BECs [4].

(3) Spin turbulence in spinor BECs [5].

References

[1] Progress of Low Temperature Physics Vol.16, eds. W. P. Halperin and M. Tsubota (Elsevier, 2008).

[2] M. Tsubota, M. Kobayashi and H. Takeuchi, arXiv:1208.0422.

[3] M. Tsubota, K. Kasamatsu and M. Ueda, Phys. Rev. A65 , 023603(2002).

[4] H. Takeuchi, S. Ishino and M. Tsubota, Phys. Rev. Lett. 105, 205301(2010): S. Ishino, M. Tsubota and H. Takeuchi, Phys. Rev. A 83 , 063602(2011).

[5] K. Fujimoto, M. Tsubota. Phys. Rev. A85 , 033642 (2012); Phys. Rev. A85 , 053641 (2012).

This talk is part of the Condensed Matter Physics Seminars series.

This talk is included in these lists:

• Bham Talks
• Cond. Mat. seminar
• Condensed Matter Physics Seminars
• Physics East 217
• What's on in Physics?

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