7 papers
Degenerations of flat connections on Riemann surfaces
Mattia Biancotto, Eric D'Hoker, Axel Kleinschmidt +2
The integration kernels for polylogarithm functions on a compact Riemann surface of arbitrary genus are shown to close as the surface undergoes a non-separating degeneration to…
Surprising one-loop finiteness of 6D half-maximal supergravities
Yu-tin Huang, Henrik Johansson, Michele Santagata +1
In four dimensions, it has long been established that gravity coupled to matter exhibits ultraviolet divergences at one loop, irrespective of supersymmetry. Notably, the four-matte…
Hidden Conformal Symmetry in AdSS Beyond Tree Level
P. J. Heslop, A. E. Lipstein, M. Santagata
Correlators of a certain one-dimensional superconformal field theory dual to hypermultiplets in AdSS exhibit a hidden four-dimensional conformal symmetry which allows…
Quantum Gravity on AdSS from CFT: Bootstrapping
Francesco Aprile, Hynek Paul, Michele Santagata
We consider the simplest four-point scattering amplitude of tensor multiplets in six-dimensional (2,0) supergravity on AdSS. Using crossing symmetry and the c…
Simplicity of Mellin amplitudes for AdSS
F. Aprile, C. Behan, R. S. Pitombo +1
The spectrum of half-BPS single-particle operators of the D1-D5 system in the supergravity regime is dual to the spectrum of Kaluza-Klein modes of tensor and graviton multiplets in…
A formula for the block expansion in free CFTs and applications to SYM at strong coupling
F. Aprile, J. M. Drummond, P. J. Heslop +1
An explicit analytic formula is presented that computes the conformal (super-)block decomposition of any free scalar or half-BPS diagram in 1d, 2d or 4d CFTs, with various supersym…