Note on the point-splitting procedure to evaluate vacuum fluctuation in certain cylindrically symmetric backgrounds
Abstract
We reexamine the two-point function approaches used to study vacuum fluctuation in wedge-shaped regions and conical backgrounds. The appearance of divergent integrals is discussed and circumvented. The issue is considered in the context of a massless scalar field in cosmic string spacetime.
- Publication:
-
Physical Review D
- Pub Date:
- July 1998
- DOI:
- 10.1103/PhysRevD.58.027502
- arXiv:
- arXiv:hep-th/9803219
- Bibcode:
- 1998PhRvD..58b7502B
- Keywords:
-
- 04.70.Dy;
- 04.62.+v;
- Quantum aspects of black holes evaporation thermodynamics;
- Quantum field theory in curved spacetime;
- High Energy Physics - Theory;
- General Relativity and Quantum Cosmology
- E-Print:
- REVTeX file, 7 pages