Istituto Nazionale di Fisica Nucleare, Sezione di Pisa

output

19922026

most citedObservation of Gravitational Waves from a Binary Black Hole Merger

14.2k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2019 · hep-thShow all

12 papers · 2 filters

hep-th2019★ 2 cited

Deuteron electric dipole moment from holographic QCD

Lorenzo Bartolini, Stefano Bolognesi, Sven Bjarke Gudnason

We compute the electric dipole moment (EDM) of the deuteron in the holographic QCD model of Witten-Sakai-Sugimoto. Previously, the leading contribution to the EDM of nucleons was c…

hep-th2019★ 11 cited

A landscape for the cosmological constant and the Higgs mass

Parsa Ghorbani, Alessandro Strumia, Daniele Teresi

The cosmological constant and the Higgs mass seem unnaturally small and anthropically selected. We show that both can be efficiently scanned in Quantum Field Theories with a large…

hep-th2019★ 12 cited

Symmetry and universality of multi-field interactions in $6 - ε$ dimensions

Alessandro Codello, Mahmoud Safari, Gian Paolo Vacca +1

We outline a general strategy developed for the analysis of critical models, which we apply to obtain a heuristic classification of all universality classes with up to three field-…

hep-th2019★ 25 cited

Gauging 1-form center symmetries in simple $S U (N)$ gauge theories

Stefano Bolognesi, Kenichi Konishi, Andrea Luzio

Consequences of gauging exact $Z_{k}^{C}$ center symmetries in several simple $S U (N)$ gauge theories, where $k$ is a divisor of $N$ , are investigated. Models discussed include: the $SU…

hep-th2019★ 9 cited

Fakeons, unitarity, massive gravitons and the cosmological constant

Damiano Anselmi

We give a simple proof of perturbative unitarity in gauge theories and quantum gravity using a special gauge that allows us to separate the physical poles of the free propagators,…

hep-th2019★ 1 cited

Vortons with Abelian and non-Abelian currents and their stability

Gianni Tallarita, Adam Peterson, Stefano Bolognesi +1

We explore vorton solutions in the Witten's $U (1) \times U (1)$ model for cosmic strings and in a modified version $U (1) \times S O (3)$ obtained by introducing a triplet of non-Abeli…

hep-th2019★ 4 cited

Topological effects in continuum 2d $U (N)$ gauge theories

Claudio Bonati, Paolo Rossi

We study the $θ$ dependence of the continuum limit of 2d $U (N)$ gauge theories defined on compact manifolds, with special emphasis on spherical ( $g = 0$ ) and toroidal ( $g = 1$ ) topolog…

hep-th2019★ 17 cited

Dynamics and symmetries in chiral $S U (N)$ gauge theories

Stefano Bolognesi, Kenichi Konishi

Dynamics and symmetry realization in various chiral gauge theories in four dimensions are investigated, generalizing a recent work by M. Shifman and the present authors, by relying…

hep-th2019

On The Behavior Of Gravitational Force At Small Scales

Marco Piva

We point out the idea that, at small scales, gravity can be described by the standard degrees of freedom of general relativity, plus a scalar particle and a degree of freedom of a…

hep-th2019★ 7 cited

Large- $N$ $CP^{N - 1}$ sigma model on a Euclidean torus: uniqueness and stability of the vacuum

Stefano Bolognesi, Sven Bjarke Gudnason, Kenichi Konishi +1

In this paper we examine analytically the large- $N$ gap equation and its solution for the $2 D$ $CP^{N - 1}$ sigma model defined on a Euclidean spacetime torus of arbitrary s…

hep-th2019★ 17 cited

To the sphere and back again: de Sitter infrared correlators at NTLO in 1/N

Diana López Nacir, Francisco D. Mazzitelli, Leonardo G. Trombetta

We analyze the infrared behavior of the two and four-point functions for the massless $O (N)$ model in Lorentzian de Sitter spacetime, using the $1/ N$ expansion. Our approach is bas…

hep-th2019★ 8 cited

Spectral Methods and Running Scales in Causal Dynamical Triangulations

Giuseppe Clemente, Massimo D'Elia, Alessandro Ferraro

The spectrum of the Laplace-Beltrami operator, computed on the spatial slices of Causal Dynamical Triangulations, is a powerful probe of the geometrical properties of the configura…