75 citations · 244 across the 6 of their papers we have counts for
6 papers
Delocalization of topological surface states by diagonal disorder in nodal loop semimetals
João Silva, Miguel A. N. Araújo, Miguel Gonçalves +2
The effect of Anderson diagonal disorder on the topological surface (``drumhead'') states of a Weyl nodal loop semimetal is addressed. Since diagonal disorder breaks chiral symmetr…
AdS Virasoro-Shapiro from single-valued periods
Luis F. Alday, Tobias Hansen, Joao A. Silva
We determine the full correction to the flat-space Wilson coefficients which enter the AdS Virasoro-Shapiro amplitude in SYM theory at strong coupling. T…
AdS Virasoro-Shapiro from dispersive sum rules
Luis F. Alday, Tobias Hansen, Joao A. Silva
We consider the four-point correlator of the stress-energy tensor in SYM, to leading order in inverse powers of the central charge, but including all order corrections…
Four point functions in CFT's with slightly broken higher spin symmetry
Joao A. Silva
We compute spinning four point functions in the quasi-fermionic three dimensional conformal field theory with slightly broken higher spin symmetry at finite t'Hooft coupling. More…
Applications of dispersive sum rules: -expansion and holography
Dean Carmi, Joao Penedones, Joao A. Silva +1
We use Mellin space dispersion relations together with Polyakov conditions to derive a family of sum rules for Conformal Field Theories (CFTs). The defining property of these sum r…
Nonperturbative Mellin Amplitudes: Existence, Properties, Applications
Joao Penedones, Joao A. Silva, Alexander Zhiboedov
We argue that nonperturbative CFT correlation functions admit a Mellin amplitude representation. Perturbative Mellin representation readily follows. We discuss the main properties…