Disformal invariance of continuous media with linear equation of state
arXiv:1609.08507 · doi:10.1088/1475-7516/2017/02/004
Abstract
We show that the effective theory describing single component continuous media with a linear and constant equation of state of the form is invariant under a 1-parameter family of continuous disformal transformations. In the special case of (ultrarelativistic gas), such a family reduces to conformal transformations. As examples, perfect fluids, homogeneous and isotropic solids are discussed.
arXiv commentlatex, 7 pages
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