Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-10-01
Phys.Rev.D76:124010,2007
Physics
High Energy Physics
High Energy Physics - Theory
18 pages, latex
Scientific paper
10.1103/PhysRevD.76.124010
The relationship between Hawking radiation emitted by non extremal and extremal Reissner Nordstrom black holes is critically analyzed. A careful study of a series of regular collapsing geometries reveals that the stress energy tensor stays regular in the extremal limit and is smoothly connected to that of non extremal black holes. The unexpected feature is that the late time transients which played little role in the non extremal case are necessary to preserve the well defined character of the flux in the extremal case. The known singular behavior of the static energy density of extremal black holes is recovered from our series by neglecting these transients, when performing what turns out to be an illegitimate late time limit. Although our results are derived in two dimensional settings, we explain why they should also apply to higher dimensional black holes.
Balbinot Roberto
Fabbri Alessandro
Farese Sara
Parentani Renaud
No associations
LandOfFree
Hawking radiation from extremal and non-extremal black holes 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 Hawking radiation from extremal and non-extremal black holes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hawking radiation from extremal and non-extremal black holes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-6498