50 citations · 114 across the 8 of their papers we have counts for
8 papers
The Holographic QCD Axion
Francesco Bigazzi, Alessio Caddeo, Aldo L. Cotrone +2
A holographic model of QCD axion is presented. It describes a composite axion in the KSVZ class. Having a gravity dual, based on the Witten-Sakai-Sugimoto model, it is calculable i…
The Ward identity of Symmetry Breaking from Holographic Renormalization
Andrea Marzolla
Notes on holographic renormalization as a tool for UV analysis and derivation of the two-point Ward identity encoding symmetry breaking. Goldstone theorem is reviewed, discussing i…
Symmetry breaking in holographic theories with Lifshitz scaling
Riccardo Argurio, Jelle Hartong, Andrea Marzolla +1
We study holographically Lifshitz-scaling theories with broken symmetries. In order to do this, we set up a bulk action with a complex scalar and a massless vector on a background…
The four-dimensional on-shell three-point amplitude in spinor-helicity formalism and BCFW recursion relations
Andrea Marzolla
Lecture notes on Poincaré-invariant scattering amplitudes and tree-level recursion relations in spinor-helicity formalism. We illustrate the non-perturbative constraints imposed ov…
Holographic Ward identities for symmetry breaking in two dimensions
Riccardo Argurio, Gaston Giribet, Andrea Marzolla +2
We investigate symmetry breaking in two-dimensional field theories which have a holographic gravity dual. Being at large N, the Coleman theorem does not hold and Goldstone bosons a…
Lorentz Constraints on Massive Three-Point Amplitudes
Eduardo Conde, Andrea Marzolla
Using the helicity-spinor language we explore the non-perturbative constraints that Lorentz symmetry imposes on three-point amplitudes where the asymptotic states can be massive. A…
Analytic pseudo-Goldstone bosons
Riccardo Argurio, Andrea Marzolla, Andrea Mezzalira +1
We consider the interplay between explicit and spontaneous symmetry breaking in strongly coupled field theories. Some well-known statements, such as the Gell-Mann-Oakes-Renner rela…
A Note on Holographic Non-Relativistic Goldstone Bosons
Riccardo Argurio, Andrea Marzolla, Andrea Mezzalira +1
We consider a holographic set-up where relativistic invariance is broken by a chemical potential, and a non-abelian internal symmetry is broken spontaneously. We use the tool of ho…