String theory

String Theory is a very promising candidate for a consistent theory of quantum gravity and the unification of all fundamental interactions. Typical ingredients of string theory include extra dimensions, supersymmetry and branes. The low-energy limit of string compactifications reproduces General Relativity and gauge theories similar to the Standard Model (SM). A complete understanding of the implications of string theory for particle physics and cosmology is currently an active area of research. The main research lines are:

String phenomenology and cosmology: effective 4D supergravity theories arising from string compactifications on Calabi-Yau spaces with branes, orientifolds and background fluxes; computation of perturbative and non-perturbative corrections; moduli stabilisation in de Sitter vacua; supersymmetry breaking; applications to cosmology (inflation, reheating, dark matter and dark energy) and to particle physics (realisation of the SM with branes, axions and hidden photons)

Generalised symmetries: generalised global symmetries in QFT and in effective theories of quantum gravity for models derived from string and M-theory; structural role and relevance of generalised symmetries and their anomalies in strongly coupled QFTs, in topological phases and in consistency conditions for quantum gravity.

Symmetries and integrability: exact computation of physical quantities via quantum integrability in string/brane theories and their holographic dual gauge theories