Superfluidity and Stationary Space-Times

Details Superfluidity and Stationary Space-Times Superfluidity and Stationary Space-Times

2009-11-12

arxiv.org/abs/0911.2326v2

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX file, 12 pages; v2 : misprints corrected; in ref. 27 the repeating of Phys. Rev. Lett. is changed to ibid., as it should

Scientific paper

A connection between superfluidity and gravitation is established for physical stationary gravitational fields. We show that the spinning cosmic string metric describes the gravitational field associated with the single vortex in a superfluid condensate model for space-time outside the vortex core. This metric differs significantly from the usual acoustic metric for the Onsager-Feynman vortex. We also consider the question of what happens when many vortices are present, and show that on large scales a G\"odel-like metric emerges. In both the single and multiple vortex cases the presence of closed time-like curves is attributed to the breakdown of superfluid rigidity.

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