84 citations · 207 across the 5 of their papers we have counts for
10 papers
Superluminality in DHOST theory with extra scalar
S. Mironov, V. Rubakov, V. Volkova
We consider DHOST Ia theory interacting gravitationally with an additional conventional scalar field minimally coupled to gravity. At the linearized level of perturbations about co…
Superluminality in beyond Horndeski theory with extra scalar field
S. Mironov, V. Rubakov, V. Volkova
We study the superluminality issue in beyond Horndeski theory with additional scalar field, which is minimally coupled to gravity and has no second derivatives in the Lagrangian. W…
Subluminal cosmological bounce beyond Horndeski
S. Mironov, V. Rubakov, V. Volkova
We address the issue of potential superluminal propagation of gravitational waves in backgrounds neighboring the previously suggested bounce [arXiv:1807.08361] in beyond Horndeski…
Cosmological scenarios with bounce and Genesis in Horndeski theory and beyond: An essay in honor of I.M. Khalatnikov on the occasion of his 100th birthday
S. Mironov, V. Rubakov, V. Volkova
This essay is a brief review of the recent studies of non-singular cosmological scenarios with bounce and Genesis and their stability in a subclass of scalar-tensor theories with h…
Genesis with general relativity asymptotics in beyond Horndeski theory
S. Mironov, V. Rubakov, V. Volkova
We suggest a novel version of a cosmological Genesis model within beyond Horndeski theory. It combines the initial Genesis behavior of Creminelli et al. [arXiv:1007.0027, arXiv:120…
More about stable wormholes in beyond Horndeski theory
S. Mironov, V. Rubakov, V. Volkova
It is known that Horndeski theories, like many other scalar-tensor gravities, do not support static, spherically symmetric wormholes: they always have either ghosts or gradient ins…