56 citations · 296 across the 25 of their papers we have counts for
27 papers
Nonlocal Gravity, Dark Energy and Conformal Symmetry: Testing the Hierarchies of Anomaly-Induced Actions
Claudio Corianò, Stefano Lionetti, Matteo Maria Maglio +1
Conformal back-reaction generates cosmological models where the trace anomaly reflects the breaking of Weyl invariance. Analyzing these actions yields a dynamic approach to dark en…
Parity-Violating CFT and the Gravitational Chiral Anomaly
Claudio Corianò, Stefano Lionetti, Matteo Maria Maglio
We illustrate how the Conformal Ward Identities (CWI) and the gravitational chiral anomaly completely determine the structure of the (graviton-graviton-chi…
CFT Correlators and CP-Violating Trace Anomalies
Claudio Corianò, Stefano Lionetti, Matteo Maria Maglio
We analyze the parity-odd correlators , , and in momentum space, constrain…
Einstein Gauss-Bonnet Gravity without a Dilaton
Claudio Corianò, Mario Cretì, Stefano Lionetti +2
A nonlocal version of Einstein-Gauss Bonnet (EGB) gravity can be generated by a procedure that follows closely the steps of the derivation of the conformal anomaly effective action…
Parity-Odd 3-Point Functions from CFT in Momentum Space and the Chiral Anomaly
Claudio Corianò, Stefano Lionetti, Matteo Maria Maglio
We illustrate how the Conformal Ward Identities (CWI) in momentum space for parity-odd correlators determine the structure of a chiral anomaly interaction, taking the example of th…
Three-Wave and Four-Wave Interactions in the Einstein Gauss-Bonnet (EGB) and Lovelock Theories
Claudio Corianò, Mario Cretì, Stefano Lionetti +1
We derive the conformal constraints satisfied by classical vertices of a (Einstein) Gauss-Bonnet theory around flat space, in general dimensions and at (4d EGB). In EGB…
Four-point functions of gravitons and conserved currents of CFT in momentum space: testing the nonlocal action with the TTJJ
Claudio Corianò, Matteo Maria Maglio, Riccardo Tommasi
We present an analysis of the perturbative realization of the correlator, with two stress energy tensors and two conserved currents, using free field theory realizations, in…
Broken Scale Invariance and the Regularization of a Conformal Sector in Gravity with Wess-Zumino actions
Claudio Corianò, Mario Cretì, Matteo Maria Maglio
We elaborate on anomaly induced actions of the Wess-Zumino (WZ) form and their relation to the renormalized effective action, which is defined by an ordinary path integral over a c…
Gravitational coupling of QED and QCD: 3- and 4- point functions in momentum space
Matteo Maria Maglio, Riccardo Tommasi
Conformal symmetry has important consequences for strong interactions at short distances and provides powerful tools for practical calculations. Even if the Lagrangians of Quantum…
Dimensional Regularization of Topological Terms in Dilaton Gravity
Claudio Corianò, Mario Cretì, Stefano Lionetti +2
The possibility of evading Lovelock's theorem at , via a singular redefinition of the dimensionless coupling of the Gauss-Bonnet term, has been extensively discussed in the co…
Topological Corrections and Conformal Backreaction in the Einstein Gauss-Bonnet/Weyl Theories of Gravity at D=4
Claudio Corianò, Matteo Maria Maglio, Dimosthenis Theofilopoulos
We investigate the gravitational backreaction, generated by coupling a general conformal sector to external, classical gravity, as described by a conformal anomaly effective action…
Einstein Gauss-Bonnet Theories as Ordinary, Wess-Zumino Conformal Anomaly Actions
Claudio Corianò, Matteo Maria Maglio
Recently, the possibility of evading Lovelock's theorem at , via a singular redefinition of the dimensionless coupling of the Gauss-Bonnet term, has been very extensively disc…
Conformal Symmetry in Momentum Space and Anomaly Actions in Gravity
Matteo Maria Maglio
In this thesis we study the momentum space approach to the solution of the CWI's of CFT's in higher dimensions. Our work's goal is to illustrate the essential steps needed to build…
The Conformal Anomaly Action to Fourth Order (4T) in in Momentum Space
Claudio Corianò, Matteo Maria Maglio, Dimosthenis Theofilopoulos
We elaborate on the structure of the conformal anomaly effective action up to 4-th order, in an expansion in the gravitational fluctuations of the background metric, in the f…
Dark Matter with Light and Ultralight Stückelberg Axions
Claudio Corianò, Matteo Maria Maglio, Alessandro Tatullo +1
Scenarios with axion-like particles of variable masses, from the milli-eV range to ultralight, can be generated in a natural way in the context of effective field theory models wit…
Conformal field theory in momentum space and anomaly actions in gravity:The analysis of three- and four-point functions
Claudio Corianò, Matteo Maria Maglio
After a brief outline of general aspects of conformal field theories in coordinate space, in a first part we review the solution of the conformal constraints of three- and four-poi…
The Generalized Hypergeometric Structure of the Ward Identities of CFT's in Momentum Space in
Claudio Corianò, Matteo Maria Maglio
We review the emergence of hypergeometric structures (of Appell functions) from the conformal Ward identities (CWIs) in conformal field theories (CFTs) in dimensions .…
Four-Point Functions in Momentum Space: Conformal Ward Identities in the Scalar/Tensor case
Claudio Corianò, Matteo Maria Maglio, Dimosthenis Theofilopoulos
We derive and analyze the conformal Ward identities (CWI's) of a tensor 4-point function of a generic CFT in momentum space. The correlator involves the stress-energy tensor an…
Anomalous Gravitational TTT Vertex, Temperature Inhomogeneity, and Pressure Anisotropy
M. N. Chernodub, Claudio Corianò, Matteo Maria Maglio
The conformal anomaly in curved spacetime generates a nontrivial anomalous vertex, given by the three-point correlation function of the energy-momentum tensor . We sh…
Exact Correlators from Conformal Ward Identities in Momentum Space and Perturbative Realizations
Claudio Corianò, Matteo Maria Maglio, Alessandro Tatullo +1
The general solution of the conformal Ward identities (CWI's) in momentum space, and their matching to perturbation theory, allows to uncover some specific characteristics of the b…
On Some Hypergeometric Solutions of the Conformal Ward Identities of Scalar 4-point Functions in Momentum Space
Claudio Corianò, Matteo Maria Maglio
We discuss specific hypergeometric solutions of the conformal Ward identities (CWI's) of scalar 4-point functions of primary fields in momentum space, in spacetime dimensions.…
Conformal Ward Identities and the Coupling of QED and QCD to Gravity
Claudio Coriano, Matteo Maria Maglio
We present a general study of 3-point functions of conformal field theory (CFT) in momentum space, following a reconstruction method for tensor correlators, based on the solution o…
The General 3-Graviton Vertex () of Conformal Field Theories in Momentum Space in
Claudio Coriano, Matteo Maria Maglio
We present a study of the correlation function of three stress-energy tensors in dimensions using free field theory realizations, and compare them to the exact solutions of the…
Renormalization, Conformal Ward Identities and the Origin of a Conformal Anomaly Pole
Claudio Coriano, Matteo Maria Maglio
We investigate the emergence of a conformal anomaly pole in conformal field theories in the case of the correlator. We show how it comes to be generated in dimensional renorm…