How to approach Quantum Gravity - Background independence in 1+1 dimensions
arXiv:gr-qc/0310068
Abstract
The application of quantum theory to gravity is beset with many technical and conceptual problems. After a short tour d'horizon of recent attempts to master those problems by the introduction of new approaches, we show that the aim, a background independent quantum theory of gravity, can be reached in a particular area, 2d dilaton quantum gravity, without any assumptions beyond standard quantum field theory.
15 pages, 1 (eps-)figure, joint proceedings contribution to the EURESCO conference "What comes beyond the Standard Model?" in Portoroz, Slovenia, July 2003, v2: added and rearranged references, minor modifications of text