Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2000-05-24
Phys.Rev.D62:064010,2000
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
13 pages, 10 figures, aps, revtex, To be published in PRD
Scientific paper
10.1103/PhysRevD.62.064010
The notion of optical geometry, introduced more than twenty years ago as a formal tool in quantum field theory on a static background, has recently found several applications to the study of physical processes around compact objects. In this paper we define optical geometry for spherically symmetric gravitational collapse, with the purpose of extending the current formalism to physically interesting spacetimes which are not conformally static. The treatment is fully general but, as an example, we also discuss the special case of the Oppenheimer-Snyder model. The analysis of the late time behaviour shows a close correspondence between the structure of optical spacetime for gravitational collapse and that of flat spacetime with an accelerating boundary. Thus, optical geometry provides a natural physical interpretation for derivations of the Hawking effect based on the ``moving mirror analogy.'' Finally, we briefly discuss the issue of back-reaction in black hole evaporation and the information paradox from the perspective of optical geometry.
Abramowicz Marek
Almergren J.
Sonego Sebastiano
No associations
LandOfFree
Optical geometry for gravitational collapse and Hawking radiation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Optical geometry for gravitational collapse and Hawking radiation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical geometry for gravitational collapse and Hawking radiation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-98881