BMS Particles in Three Dimensions

• Main Author: Oblak, Blagoje
• Other Authors: Barnich, Glenn
• Format: Doctoral Thesis
• Language: en
• Published: Universite Libre de Bruxelles 2016
• Subjects: Physique théorique et mathématique; Théorie quantique des champs; Gravitation; Quantum gravity; Particle physics
• Online Access: https://dipot.ulb.ac.be/dspace/bitstream/2013/231882/4/Thesis.pdf; https://dipot.ulb.ac.be/dspace/bitstream/2013/231882/5/contratOblak.pdf; https://dipot.ulb.ac.be/dspace/bitstream/2013/231882/3/Contents.pdf; http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/231882

This thesis is devoted to the group-theoretic aspects of three-dimensional quantum gravity on Anti-de Sitter and Minkowskian backgrounds. In particular we describe the relation between unitary representations of asymptotic symmetry groups and gravitational perturbations around a space-time metric. In the asymptotically flat case this leads to BMS particles, representing standard relativistic particles dressed with gravitational degrees of freedom accounted for by coadjoint orbits of the Virasoro group. Their thermodynamics are described by BMS characters, which coincide with gravitational one-loop partition functions. We also extend these considerations to higher-spin theories and supergravity. === Doctorat en Sciences === info:eu-repo/semantics/nonPublished