90 citations · 276 across the 9 of their papers we have counts for
3 papers · 1 filter
Mimetic K-essence
Pavel Jiroušek, Keigo Shimada, Alexander Vikman +1
We propose a new non-trivial way to combine mimetic dark matter with the mimetic formulation of unimodular gravity. This yields a Weyl-invariant higher-derivative scalar-vector-ten…
New Dynamical Degrees of Freedom from Invertible Transformations
Pavel Jiroušek, Keigo Shimada, Alexander Vikman +1
We show that invertible transformations of dynamical variables can change the number of dynamical degrees of freedom. Moreover, even in cases when the number of dynamical degrees o…
Disforming to Conformal Symmetry
Pavel Jiroušek, Keigo Shimada, Alexander Vikman +1
We analyse the dynamical properties of disformally transformed theories of gravity. We show that disformal transformation typically introduces novel degrees of freedom, equivalent…