Field theory of hyperfluid

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2 Citations (Scopus)

Abstract

A hyperfluid model is constructed on the basis of its action entirely free from external constraints, regarding the hyperfluid as a self-consistent classical field. Intrinsic hypermomentum is no longer a supplemental variable given by external constraints, but arises purely from the diffeomorphism covariance of dynamical field. The field-theoretic approach allows natural classification of a hyperfluid on the basis of its symmetry group and corresponding homogeneous space; scalar, spinor, vector, and tensor fluids are introduced as simple examples. Apart from phenomenological constraints, the theory predicts the hypermomentum exchange of fluid via field-theoretic interactions of various classes; fluid-fluid interactions, minimal and non-minimal SU(n)-gauge couplings, and coupling with metric-affine gravity are all successfully formulated within the classical regime.

Original languageEnglish
Article number035003
JournalClassical and Quantum Gravity
Volume35
Issue number3
DOIs
Publication statusPublished - 2018 Jan 2
Externally publishedYes

Keywords

  • action principle
  • fluid mechanics
  • gauge theory
  • metric-affine gravity

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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