14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of PisaIT5.2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT4k papers
- Centre National de la Recherche ScientifiqueFR3.9k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT3.7k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR3.6k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT3.5k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT3.3k papers
- Rutherford Appleton LaboratoryGB3.3k papers
- European Organization for Nuclear ResearchCH3.1k papers
- The Ohio State UniversityUS3.1k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR3k papers
- Massachusetts Institute of TechnologyUS3k papers
419 papers · 1 filter
Fractions and Fakeons in Quantum Field Theory
Damiano Anselmi
We investigate formulations of quantum field theories whose kinetic terms involve fractional or continuous powers of the d'Alembert operator. The primary requirements are perturbat…
Strongly Coupled Sectors in Inflation: Gapped Theories of Unparticles
Yikun Jiang, Guilherme L. Pimentel, Chen Yang
We consider a novel scenario for a strongly coupled spectator sector during inflation, that of a higher dimensional conformal field theory with large anomalous dimensions -- ``unpa…
Baryons, Skyrmions and -periodicity anomaly in chiral and vector-like gauge theories
Stefano Bolognesi, Andrea Luzio, Giacomo Santoni
In this paper, we study the baryons and solitons of chiral and vector-like gauge theories with matter in mixed one and two-index representations. Focusing on the Color-flav…
Classicized dynamics and initial conditions in field theories with fakeons
Damiano Anselmi, Gianluca Calcagni
Theories with purely virtual particles (fakeons) do not possess a classical action in the strict sense, but rather a "classicized" one, obtained by integrating out the fake particl…
On the Asymptotic Nature of Cosmological Effective Theories
Carlos Duaso Pueyo, Harry Goodhew, Ciaran McCulloch +1
Much of our intuition about Effective Field Theories (EFTs) stems from their formulation in flat spacetime, yet EFTs have become indispensable tools in cosmology, where time-depend…
Strongly Coupled Sectors in Inflation: Gapless Theories and Unparticles
Guilherme L. Pimentel, Chen Yang
We compute correlation functions of the primordial density perturbations when they couple to a gapless, strongly coupled sector of spectator fields -- ``unparticles" -- during infl…
Amplitude prescriptions in field theories with complex poles
Damiano Anselmi, Fabio Briscese, Gianluca Calcagni +1
In the context of field theories with complex poles, we scrutinize four inequivalent ways of defining the scattering amplitudes, each forfeiting one or more tenets of standard quan…
Time Evolution of the Symmetry Resolved Entanglement Entropy after a Mass Quench
Federico Rottoli, Michele Mazzoni, Fabio Sailis +1
In this paper we investigate the properties of the symmetry resolved entanglement entropy after a mass quench in the Ising field theory. Since the theory is free and the post-quenc…
The tricritical Ising CFT and conformal bootstrap
Johan Henriksson
The tricritical Ising CFT is the IR fixed-point of theory. It can be seen as a one-parameter family of CFTs connecting between an -expansion near the upper crit…
Visions in Quantum Gravity
Luca Buoninfante, Benjamin Knorr, K. Sravan Kumar +36
To deepen our understanding of Quantum Gravity and its connections with black holes and cosmology, building a common language and exchanging ideas across different approaches is cr…
Quantum gravity with purely virtual particles from asymptotically local quantum field theory
Damiano Anselmi
We investigate the relationship between nonlocal and local quantum field theories, and search for a viable notion of "local limit" to relate the unitary models. In Euclidean space…
Amplitudes and Polarizations of Quadratic Quasi-Normal Modes for a Schwarzschild Black Hole
Bruno Bucciotti, Leonardo Juliano, Adrien Kuntz +1
General Relativity predicts the existence of quadratic quasi-normal modes at second order in perturbation theory. Building on our recent work, we compute the amplitudes and polariz…
Positivity Bounds on Massive Vectors
Francesco Bertucci, Johan Henriksson, Brian McPeak +3
In this paper, we explore positivity bounds for the effective field theory~(EFT) of a single weakly coupled massive vector field. The presence of both mass and spin makes the cross…
Mass and Isospin Breaking Effects in the Skyrme Model and in Holographic QCD
Lorenzo Bartolini, Stefano Bolognesi, Sven Bjarke Gudnason +1
We discuss how the quark masses and their mass splitting affect the baryons in the Skyrme model as well as the Witten-Sakai-Sugimoto (WSS) model. In both cases baryons are describe…
Adding subtractions: comparing the impact of different Regge behaviors
Brian McPeak, Marco Venuti, Alessandro Vichi
Dispersion relations let us leverage the analytic structure of scattering amplitudes to derive constraints such as bounds on EFT coefficients. An important input is the large-energ…
A note on Gauss operators and quantizations of Yang-Mills theories
Bruno Bucciotti, Franco Strocchi
The quantization of Yang-Mills field theories requires the introduction of a gauge fixing which leads to a violation of the Local Gauss Law described by the so-called Gauss operato…
Nonlinear Quasi-Normal Modes: Uniform Approximation
Bruno Bucciotti, Adrien Kuntz, Francesco Serra +1
Recent works have suggested that nonlinear (quadratic) effects in black hole perturbation theory may be important for describing a black hole ringdown. We show that the technique o…
Interplay between Black Holes and Ultralight Dark Matter: Analytic Solutions
Bruno Bucciotti, Enrico Trincherini
Dark matter (DM) can consist of a scalar field so light that DM particles in the galactic halo are best described by classical waves. We investigate how these classical solutions a…
From the string vacuum to FLRW or de Sitter via corrections
P. Conzinu, G. Fanizza, M. Gasperini +3
We first make more precise a recent "Hamiltonian" reformulation of the Hohm-Zwiebach approach to the tree-level, -invariant string cosmology equations at all orders in the…
A Simple, Exact Formulation of Number Counts in the Geodesic-Light-Cone Gauge
G. Fanizza, M. Gasperini, G. Marozzi
In this article, we compare different formulations of the number count prescription using the convenient formalism of the Geodesic-Light-Cone gauge. We then find a simple, exact, a…
Gauge theories and quantum gravity in a finite interval of time, on a compact space manifold
Damiano Anselmi
We study gauge theories and quantum gravity in a finite interval of time , on a compact space manifold . The initial, final and boundary conditions are formulated in gauge in…
Quantum field theory of physical and purely virtual particles in a finite interval of time on a compact space manifold: diagrams, amplitudes and unitarity
Damiano Anselmi
We provide a diagrammatic formulation of perturbative quantum field theory in a finite interval of time , on a compact space manifold . We explain how to compute the evolutio…
Anomalous Dimensions in Hypercubic Theories
Alexander Bednyakov, Johan Henriksson, Stefanos R. Kousvos
We perform a comprehensive perturbative study of the operator spectrum in multi-scalar theories with hypercubic global symmetry. This includes working out symmetry representations…
Aspects of the Electroweak Skyrmion
Stefano Bolognesi, Sven Bjarke Gudnason, Giacomo Santoni
We consider certain aspects of the electroweak Skyrmion (EWS). We discuss the case of EWS with dynamical Higgs and find numerical solutions for various values of the cutoff scale.…