Time and M-Theory
Abstract
We review our recent proposal for a background-independent formulation of a holographic theory of quantum gravity. The present paper incorporates the necessary background material on geometry of canonical quantum theory, holography and space-time thermodynamics, Matrix theory, as well as our specific proposal for a dynamical theory of geometric quantum mechanics, as applied to Matrix theory. At the heart of this review is a new analysis of the conceptual problem of time and the closely related and phenomenologically relevant problem of vacuum energy in quantum gravity. We also present a discussion of some observational implications of this new viewpoint on the problem of vacuum energy.
- Publication:
-
International Journal of Modern Physics A
- Pub Date:
- 2007
- DOI:
- 10.1142/S0217751X07036981
- arXiv:
- arXiv:0706.2252
- Bibcode:
- 2007IJMPA..22.3317J
- Keywords:
-
- Background dependence;
- quantum gravity;
- M-theory;
- string theory;
- dark energy;
- High Energy Physics - Theory
- E-Print:
- 86 pages, 5 figures, LaTeX, typos fixed, references added, and Sec. 6.2 revised