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12 papers · 2 filters
A remarkably simple theory of 3d massive gravity
Marc Geiller, Karim Noui
We propose and study a new action for three-dimensional massive gravity. This action takes a very simple form when written in terms of connection and triad variables, but the conne…
Kinetic equation for Lifshitz scalar
Shinji Mukohyama, Yota Watanabe
Employing the method of Wigner functions on curved spaces, we study classical kinetic (Boltzmann-like) equations of distribution functions for a real scalar field with the Lifshitz…
Cosmological evolution in DHOST theories
Marco Crisostomi, Kazuya Koyama, David Langlois +2
In the context of Degenerate Higher-Order Scalar-Tensor (DHOST) theories, we study cosmological solutions and their stability properties. In particular, we explicitly illustrate th…
Conformal magnetic effect at the edge: a numerical study in scalar QED
M. N. Chernodub, V. A. Goy, A. V. Molochkov
Quantum polarization effects associated with the conformal anomaly in a static magnetic field background may generate a transverse electric current in the vacuum. The current may b…
The Ogievetsky-Polubarinov massive gravity and the benign Boulware-Deser mode
Shinji Mukohyama, Mikhail S. Volkov
We present our analysis of the theory constructed in 1965 by Ogievetsky and Polubarinov (OP) -- the first ever theory of interacting massive gravitons. Its mass term is adjusted in…
Conformal Higher-Spin Gravity: Linearized Spectrum = Symmetry Algebra
Thomas Basile, Xavier Bekaert, Euihun Joung
The linearized spectrum and the algebra of global symmetries of conformal higher-spin gravity decompose into infinitely many representations of the conformal algebra. Their charact…