Relativistic superfluidity and vorticity from the nonlinear Klein-Gordon equation

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

Research output: Contribution to journalArticlepeer-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 languageEnglish
Article number125019
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume90
Issue number12
DOIs
Publication statusPublished - Dec 19 2014

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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