378 citations · 1.1k across the 16 of their papers we have counts for
6 papers · 1 filter
Parity from gauge symmetry
Alessio Maiezza, Fabrizio Nesti
We argue that Left-Right parity symmetry can arise as a discrete remnant of a unified gauge symmetry. The high-energy unification necessarily includes the gauging of…
Stars and (Furry) Black Holes in Lorentz Breaking Massive Gravity
Denis Comelli, Fabrizio Nesti, Luigi Pilo
We study the exact spherically symmetric solutions in a class of Lorentz-breaking massive gravity theories, using the effective-theory approach where the graviton mass is generated…
Lorentz Breaking Massive Gravity in Curved Space
D. Blas, D. Comelli, F. Nesti +1
A systematic study of the different phases of Lorentz-breaking massive gravity in a curved background is performed. For tensor and vector modes, the analysis is very close to that…
Graviweak Unification
F. Nesti, R. Percacci
The coupling of chiral fermions to gravity makes use only of the selfdual SU(2) subalgebra of the (complexified) SO(3,1) algebra. It is possible to identify the antiselfdual subalg…
Standard Model and Gravity from Spinors
F. Nesti
We propose to unify the Gravity and Standard Model gauge groups by using algebraic spinors of the standard four-dimensional Clifford algebra, in left-right symmetric fashion. This…
Spontaneous Lorentz Breaking and Massive Gravity
Z. Berezhiani, D. Comelli, F. Nesti +1
We study a theory where the presence of an extra spin-two field coupled to gravity gives rise to a phase with spontaneously broken Lorentz symmetry. In this phase gravity is massiv…