1999/08/28 by P. Marios Petropoulos, Petropoulos, P. Marios · 1 citation
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/9908189
18 pages, latex. To appear in the proceedings of the TMR European program meeting "Quantum aspects of gauge theories, supersymmetry and unification", Paris, France, 1--7 September, 1999; v2: comments and references added
arxiv created 2000/03/02 · arxiv updated 2009/11/30
String theory on curved backgrounds has received much attention on account of both its own interest, and of its relation with gauge theories. Despite the progress made in various directions, several quite elementary questions remain unanswered, in particular in the very simple case of three-dimensional anti-de Sitter space. I will very briefly review these problems, discuss in some detail the important issue of constructing a consistent spectrum for a string propagating on ADS3 plus torsion background, and comment on potential solutions.