Towards a semiclassical seismology of black holes.
نویسنده
چکیده
Black hole spacetimes are semiclassically not static. For black holes whose lifetime is larger than the age of the universe we compute, in leading order, the power spectrum of deviations of the electromagnetic charge from it’s average value, zero. Semiclassically the metric itself has a statistical interpretation and we compute a lowerbound on its variance.
منابع مشابه
Quantum Tunneling, Blackbody Spectrum and Non-Logarithmic Entropy Correction for Lovelock Black Holes
We show, using the tunneling method, that Lovelock black holes Hawking radiate with a perfect blackbody spectrum. This is a new result. Within the semiclassical (WKB) approximation the temperature of the spectrum is given by the semiclassical Hawking temperature. Beyond the semiclassical approximation the thermal nature of the spectrum does not change but the temperature undergoes some higher o...
متن کاملA bound on the effective gravitational coupling from semiclassical black holes
We show that the existence of semiclassical black holes of size as small as a minimal length scale lUV implies a bound on a gravitational analogue of ’t-Hooft’s coupling λG(l) ≡ N(l)GN/l at all scales l ≥ lUV . The proof is valid for any metric theory of gravity that consistently extends Einstein’s gravity and is based on two assumptions about semiclassical black holes: i) that they emit as bla...
متن کاملD ec 1 99 9 Thermodynamics of charged anti - de Sitter black holes in canonical ensemble
As in the grand canonical treatment of Reissner-Nordström black holes in anti-de Sitter spacetime, the canonical ensemble formulation also shows that non-extremal black holes tend to have lower action than extremal ones. However, some small non-extremal black holes have higher action, leading to the possibility of transitions between non-extremal and extremal black holes. Black hole thermodynam...
متن کاملThermodynamics of Charged Anti-de Sitter Black Holes in Canonical Ensemble
As in the grand canonical treatment of Reissner-Nordström black holes in anti-de Sitter spacetime, the canonical ensemble formulation also shows that non-extremal black holes tend to have lower action than extremal ones. However, some small non-extremal black holes have higher action, leading to the possibility of transitions between non-extremal and extremal black holes. Black hole thermodynam...
متن کاملThe Effectiveness of D-branes in the Description of Near-Extremal Black Holes
It is known that weak coupling calculations of absorption or emission by slightly non-extremal D-brane configurations are in exact agreement with semiclassical results for the black holes they describe at strong couplings. We investigate one open string loop corrections to processes involving single D-branes and show that a class of relevant terms vanish, indicating that these processes are not...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Physical review. D, Particles and fields
دوره 50 6 شماره
صفحات -
تاریخ انتشار 1994