Touching random surfaces, two-dimensional quantum gravity, and noncritical string theory
Abstract
A set of physical operators which are responsible for touching interactions in the framework of c<1 unitary conformal matter coupled to 2D quantum gravity is found. As a special case, the noncritical bosonic strings are considered. Some analogies with four-dimensional quantum gravity are also discussed, e.g., creation-annihilation operators for baby universes and the Coleman mechanism for the cosmological constant.
- Publication:
-
Physical Review D
- Pub Date:
- March 1998
- DOI:
- 10.1103/PhysRevD.57.3725
- arXiv:
- arXiv:hep-th/9710107
- Bibcode:
- 1998PhRvD..57.3725A
- Keywords:
-
- 11.25.Pm;
- 04.60.-m;
- 11.25.Hf;
- Noncritical string theory;
- Quantum gravity;
- Conformal field theory algebraic structures;
- High Energy Physics - Theory
- E-Print:
- 22 pages, Latex2e, 3 figures