Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-01-26
Comptes Rendus Physique 7 (2006) 398-405
Astronomy and Astrophysics
Astrophysics
Invited lecture at `Statistical Mechanics of Non-Extensive Systems', Observatoire de Paris, 24-25 October 2005, to be publishe
Scientific paper
10.1016/j.crhy.2006.02.003
We compute the quantum string entropy S_s(m,j) of the microscopic string states of mass m and spin j in two physically relevant backgrounds: Kerr (rotating) black holes and de Sitter (dS) space-time. We find a new formula for the quantum gravitational entropy S_{sem} (M, J), as a function of the usual Bekenstein-Hawking entropy S_{sem}^(0)(M, J). We compute the quantum string emission by a black hole in de Sitter space-time (bhdS). In all these cases: (i) strings with the highest spin, and (ii) in dS space-time, (iii) quantum rotating black holes, (iv) quantum dS regime, (v) late bhdS evaporation, we find a new gravitational phase transition with a common distinctive universal feature: A square root branch point singularity in any space-time dimensions. This is the same behavior as for the thermal self-gravitating gas of point particles (de Vega-Sanchez transition), thus describing a new universality class.
No associations
LandOfFree
Self-Gravitating Phase Transitions: Point Particles, Black Holes and Strings 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 Self-Gravitating Phase Transitions: Point Particles, Black Holes and Strings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-Gravitating Phase Transitions: Point Particles, Black Holes and Strings will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-170993