Superfluid Picture for Rotating Space-Times

Details Superfluid Picture for Rotating Space-Times Superfluid Picture for Rotating Space-Times

2004-07-08

arxiv.org/abs/gr-qc/0407033v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, two column format, LaTeX

Scientific paper

A new prescription, in the framework of condensate models for space-times, for physical stationary gravitational fields is presented. 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\"{o}del-like metric emerges. In both the single and multiple vortex cases the failure of general relativity exemplified by the presence of closed time-like curves is attributed to the breakdown of superfluid rigidity.

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