280 citations · 1.9k across the 52 of their papers we have counts for
5 papers · 1 filter
One-loop four-graviton string amplitude at finite
Marco Maria Baccianti, Lorenz Eberhardt, Sebastian Mizera
We evaluate the one-loop four-graviton scattering amplitude in type-II superstring theory exactly in . This result is achieved by combining physical insights into the $i\vareps…
A localising AdS sigma model
Lorenz Eberhardt, Matthias R. Gaberdiel
We construct a CFT with symmetry at the `tensionless' point , which is distinct from the usual WZW model. Thi…
A microscopic realization of dS
Scott Collier, Lorenz Eberhardt, Beatrix Mühlmann
We propose a precise duality between pure de Sitter quantum gravity in 2+1 dimensions and a double-scaled matrix integral. This duality unfolds in two distinct aspects. First, by c…
Rademacher expansion of modular integrals
Marco Maria Baccianti, Jeevan Chandra, Lorenz Eberhardt +2
We develop a method to evaluate integrals of non-holomorphic modular functions over the fundamental domain of the torus with modular parameter analytically. It proceeds in two…
The complex Liouville string: the gravitational path integral
Scott Collier, Lorenz Eberhardt, Beatrix Mühlmann
We give a rigorous definition of sine dilaton gravity in terms of the worldsheet theory of the complex Liouville string arXiv:2409.17246. The latter has a known exact solution that…