Relativistic superfluidity and vorticity from the nonlinear Klein-Gordon equation

Chi Xiong; Michael R.R. Good; Yulong Guo; Xiaopei Liu; Kerson Huang

doi:10.1103/PhysRevD.90.125019

Relativistic superfluidity and vorticity from the nonlinear Klein-Gordon equation

Chi Xiong, Michael R.R. Good, Yulong Guo, Xiaopei Liu, Kerson Huang

Department of Physics

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

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 nonrelativistic nonlinear Schrödinger equation, which is widely used in describing superfluidity and vorticity in liquid helium and cold-trapped atomic gases.

Original language	English
Article number	125019
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	90
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevD.90.125019
Publication status	Published - Dec 19 2014

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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title = "Relativistic superfluidity and vorticity from the nonlinear Klein-Gordon equation",

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 nonrelativistic nonlinear Schr{\"o}dinger equation, which is widely used in describing superfluidity and vorticity in liquid helium and cold-trapped atomic gases.",

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AU - Guo, Yulong

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AU - Huang, Kerson

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