3 papers
hep-th2019
Inequivalent Goldstone Hierarchies for Spontaneously Broken Spacetime Symmetries
Bernardo Finelli
The coset construction is a powerful tool for building theories that non-linearly realize symmetries. We show that when the symmetry group is not semisimple and includes spacetime…
hep-th2018
The Effective Theory of Shift-Symmetric Cosmologies
Bernardo Finelli, Garrett Goon, Enrico Pajer +1
A shift symmetry is a ubiquitous ingredient in inflationary models, both in effective constructions and in UV-finite embeddings such as string theory. It has also been proposed to…
hep-th2017
Soft Theorems For Shift-Symmetric Cosmologies
Bernardo Finelli, Garrett Goon, Enrico Pajer +1
We derive soft theorems for single-clock cosmologies that enjoy a shift symmetry. These so-called consistency conditions arise from a combination of a large diffeomorphism and the…