Lecturer: Dr. Shubho Roy
Affiliation: Racah Institute of Physics, Hebrew University of Jerusalem
Abstract:
Resolution of cosmological singularities is an
important problem in any full theory of quantum
gravity. Three dimensional de Sitter space
admits quotients that have big-bang/big-crunch
singularities and so does the Milne orbifold
which is a quotient of 2+1 flat space. Using the
Chern-Simons formulation of higher spin gravity
in 2+1 d de Sitter and flat space we show that
higher spin theories can execute a simple
resolution of the cosmological singularities when
one embeds them in 2+1 dimensions.
Additional details of the upcoming High Energys'
seminars can be found on the following link.