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FEYNMAN LOOPS AND THREE-DIMENSIONAL QUANTUM GRAVITY.
- Source :
-
Modern Physics Letters A . 6/14/2005, Vol. 20 Issue 17/18, p1271-1283. 13p. - Publication Year :
- 2005
-
Abstract
- This paper explores the idea that within the framework of three-dimensional quantum gravity one can extend the notion of Feynman diagram to include the coupling of the particles in the diagram with quantum gravity. The paper concentrates on the non-trivial part of the gravitational response, which is to the large momenta propagating around a closed loop. By taking a limiting case one can give a simple geometric description of this gravitational response. This is calculated in detail for the example of a closed Feynman loop in the form of a trefoil knot. The results show that when the magnitude of the momentum passes a certain threshold value, non-trivial gravitational configurations of the knot play an important role. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02177323
- Volume :
- 20
- Issue :
- 17/18
- Database :
- Academic Search Index
- Journal :
- Modern Physics Letters A
- Publication Type :
- Academic Journal
- Accession number :
- 17434881
- Full Text :
- https://doi.org/10.1142/S0217732305017743