Xavier Kervyn

activity

20232026

most citedBMS Symmetries of Gravitational Scattering

2 citations · 2 across the 4 of their papers we have counts for

collaborators

4 papers

hep-th2026

Resurgence of high-energy string amplitudes

Xavier Kervyn, Stephan Stieberger

We analyze the fixed-angle high-energy ( $α^{'} \to \infty$ ) structure of $n$ -point tree-level string amplitudes from complementary perspectives: locally via saddle-point expansions, a…

hep-th2025

High Energy String Theory and the Celestial Sphere

Xavier Kervyn, Stephan Stieberger

We elaborate on a string world-sheet connection to flat space-time holography. More specifically, in the high energy (zero tension) limit of tree-level string scattering in flat ba…

hep-th2025

Thermodynamics of integrable N=2 theories, squared

Xavier Kervyn, Davide Polvara, Alessandro Sfondrini

In arXiv:2306.17553 a new supersymmetric integrable QFT was constructed from the relativistic limit of the worlsdheet theory of AdS $_{3} \times$ S $^{3} \times$ T $^{4}$ superstrings with m…

gr-qc2023★ 2 cited

BMS Symmetries of Gravitational Scattering

Xavier Kervyn

After motivating the relevance of the Bondi-Metzner-Sachs (BMS) group over the last decades, we review how concepts such as Penrose diagrams and the covariant phase space formalism…