Research

Current Interests

• A few keywords, in no particular order: string theory, holography in various backgrounds and in particular flat-space holography (celestial/Carrollian), scattering amplitudes, non-relativistic and tensionless strings, Carrollian physics, positive geometry and surfaceology, (ambi)twistor theory, asymptotic symmetries.

Publications & Preprints

• Please see my Inspire profile for an up-to-date list of my contributions in theoretical physics and citations.
• Most recent work:

High Energy String Theory and the Celestial Sphere

Work with Stephan Stieberger. We elaborate on the connection between the high-energy limit of the string worldsheet and flat-space (celestial) holography at tree level, using steepest descent methods. This reveals a dual description which organizes large-energy expansions on the celestial sphere in terms higher-spin modes of the string, and suggests a worldsheet-based construction of celestial CFT. We also analyze subleading corrections and number-theoretic aspects of open and closed string amplitudes, relevant for tensionless strings.

(2025) Journal of High Energy Physics [InspireHEP] [arXiv]

See more
To be added shortly :)

Academic Journey

• My recent (short) academic curriculum vitae can be found here, along with a list of talks and conferences.