Person
Gabriel Francisco Cuomo
This person is no longer with EPFL
Related publications (7)
A note on the large charge expansion in 4d CFT
In this letter, we discuss certain universal predictions of the large charge expansion in conformal field theories with U (1) symmetry, mainly focusing on four-dimensional theories. We show that, while in three dimensions quantum fluctuations are responsib ...
ELSEVIER2021Gapped Goldstones at the cut-off scale: a non-relativistic EFT
Riccardo Rattazzi, Alexander Monin, Angelo Esposito, Gabriel Francisco Cuomo
At finite density, the spontaneous breakdown of an internal non-Abelian symmetry dictates, along with gapless modes, modes whose gap is fixed by the algebra and proportional to the chemical potential: the gapped Goldstones. Generically the gap of these sta ...
SPRINGER2021Large charge, semiclassics and superfluids : from broken symmetries to conformal field theories
This thesis explores the application of semiclassical methods in the study of states with large quantum numbers for theories invariant under internal symmetries.
In the first part of the thesis, we study zero-temperature superfluids. These provide a gener ...
EPFL2020Goldstone equivalence and high energy electroweak physics
Andrea Wulzer, Gabriel Francisco Cuomo, Luca Vecchi
The transition between the broken and unbroken phases of massive gauge theories, namely the rearrangement of longitudinal and Goldstone degrees of freedom that occurs at high energy, is not manifestly smooth in the standard formalism. The lack of smoothnes ...
2020Superfluids, vortices and spinning charged operators in 4d CFT
We include vortices in the superfluid EFT for four dimensional CFTs at large global charge. Using the state-operator correspondence, vortices are mapped to charged operators with large spin and we compute their scaling dimensions. Different regimes are ide ...
SPRINGER2020Feynman diagrams and the large charge expansion in 3-epsilon dimensions
Riccardo Rattazzi, Alexander Monin, Gil Badel, Gabriel Francisco Cuomo
In arXiv:1909.01269 it was shown that the scaling dimension of the lightest charge n operator in the U (1) model at the Wilson-Fisher fixed point in D = 4 - epsilon can be computed semiclassically for arbitrary values of lambda n, where lambda is the pertu ...
2020The epsilon expansion meets semiclassics
Riccardo Rattazzi, Alexander Monin, Gil Badel, Gabriel Francisco Cuomo
We study the scaling dimension Delta(phi n) of the operator phi(n) where phi is the fundamental complex field of the U(1) model at the Wilson-Fisher fixed point in d = 4 - epsilon. Even for a perturbatively small fixed point coupling lambda*, standard pert ...
Springer2019