Formal Theory: Status and Outlook

TL;DR

This paper reviews recent advances in formal high energy physics and cosmology, highlighting breakthroughs in black hole information, amplitudes, bootstrap, swampland, and prospects for observational tests with gravitational waves.

Contribution

It provides a comprehensive overview of current research directions and future prospects in formal theoretical physics related to high energy phenomena and cosmology.

Findings

Breakthroughs in black hole information paradox

Progress in amplitudes, bootstrap, and swampland programmes

Potential for ultra high frequency gravitational waves to test early universe physics

Abstract

A very brief overview is presented on some of the current most active areas of research in formal aspects of High Energy Physics and Cosmology. Including the recent breakthrough on the black hole information paradox, developments on amplitudes, the bootstrap and swampland programmes as well as progress towards realistic UV complete models of particle physics and cosmology. Perspectives on future contact with observations are discussed, emphasising the long term prospect for ultra high frequency gravitational waves to test early universe physics beyond the Standard Model.