Relativistic superfluidity and vorticity from the nonlinear Klein-Gordon equation
arXiv:1408.0779 · doi:10.1103/PhysRevD.90.125019
Abstract
We investigate superfluidity, and the mechanism for creation of quantized vortices, in the relativistic regime. The general framework is a nonlinear Klein-Gordon equation in curved spacetime for a complex scalar field, whose phase dynamics gives rise to superfluidity. The mechanisms discussed are local inertial forces (Coriolis and centrifugal), and current-current interaction with an external source. The primary application is to cosmology, but we also discuss the reduction to the non-relativistic nonlinear Schrödinger equation, which is widely used in describing superfluidity and vorticity in liquid helium and cold-trapped atomic gases.
arXiv comment7 pages, 5 figures. Revised version. To appear in Phys. Rev. D
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Cited by in corpus (20)
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