444 citations · 3.4k across the 60 of their papers we have counts for
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Disformal invariance of continuous media with linear equation of state
M. Celoria, S. Matarrese, L. Pilo
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 fami…
Thermodynamics of perfect fluids from scalar field theory
Guillermo Ballesteros, Denis Comelli, Luigi Pilo
The low-energy dynamics of relativistic continuous media is given by a shift-symmetric effective theory of four scalar fields. These scalars describe the embedding in spacetime of…
Massive and modified gravity as self-gravitating media
Guillermo Ballesteros, Denis Comelli, Luigi Pilo
We study the effective field theory that describes the low-energy physics of self-gravitating media. The field content consists of four derivatively coupled scalar fields that can…
Living with ghosts in Horava-Lifshitz gravity
S. Ramazanov, F. Arroja, M. Celoria +2
We consider the branch of the projectable Horava-Lifshitz model which exhibits ghost instabilities in the low energy limit. It turns out that, due to the Lorentz violating structur…