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Schwarzschild-de Sitter black hole from entropic viewpoint
Schwarzschild-de Sitter black hole entropic viewpoint
2010/12/23
In a Schwarzschild-de Sitter space, we consider an equipotential surface which consists of two holographic screens. Adapting the Bousso-Hawking's reference point of vanishing force, we divide the spac...
State independence for tunneling processes through black hole horizons and Hawking radiation
State independence black hole horizons Hawking radiation
2010/12/27
Tunneling processes through black hole horizons have recently been investigated in the framework of WKB theory discovering interesting interplay with the Hawking radiation. In this paper we instead ad...
Asymptotically flat, stable black hole solutions in Einstein--Yang-Mills--Chern-Simons theory
Asymptotically flat stable black hole solutions
2010/12/23
We construct finite mass, asymptotically flat black hole solutions in d=5 Einstein--Yang-Mills--Chern-Simons theory. Our results indicate the existence of a second order phase transition between Reiss...
Lamb Shift for static atoms outside a Schwarzschild black hole
Lamb Shift static atoms Schwarzschild black hole
2010/12/23
We study, by separately calculating the contributions of vacuum fluctuations and radiation reaction to the atomic energy level shift, the Lamb shift of a static two-level atom interacting with real ma...
Black-Hole Solutions to Einstein's Equations in the Presence of Matter and Modifications of Gravitation in Extra Dimensions
Black-Hole Solutions Einstein's Equations Modifications
2010/12/24
In this thesis, we wish to examine the black-hole solutions of modified gravity theories inspired by String Theory or Cosmology. Namely, these modifications will take the guise of additional gauge and...
A key question in the study of N=2 supersymmetric string or field theories is to understand the decay of BPS bound states across walls of marginal stability in the space of parameters or vacua. By re...
State independence for tunneling processes through black hole horizons and Hawking radiation
State independence black hole horizons Hawking radiation
2010/12/20
Tunneling processes through black hole horizons have recently been investigated in the framework of WKB theory discovering interesting interplay with the Hawking radiation. In this paper we instead ad...
Resonant recoil in extreme mass ratio binary black hole mergers
Resonant recoil extreme mass ratio binary black hole mergers
2010/12/20
The inspiral and merger of a binary black hole system generally leads to an asymmetric distribution of emitted radiation, and hence a recoil of the remnant black hole directed opposite to the net line...
Studies of Stellar Collapse and Black Hole Formation with the Open-Source Code GR1D
stellar collapse neutron stars black holes supernovae
2010/12/20
We discuss results from simulations of black hole formation in failing core-collapse
supernovae performed with the code GR1D, a new open-source Eulerian spherically-symmetric
general-relativistic hy...
Schwarzschild-de Sitter black hole from entropic viewpoint
Schwarzschild-de Sitter space Unruh-Verlinde temperature entropic force
2010/12/21
In a Schwarzschild-de Sitter space, we consider an equipotential surface which consists of two holographic screens. Adapting the Bousso-Hawking's reference point of vanishing force, we divide the spac...
Lamb Shift for static atoms outside a Schwarzschild black hole
Lamb Shift static atoms Schwarzschild black hole
2010/12/21
We study, by separately calculating the contributions of vacuum fluctuations and radiation
reaction to the atomic energy level shift, the Lamb shift of a static two-level atom interacting with real m...
Boundary value problems for the stationary axisymmetric Einstein equations: a disk rotating around a black hole
Boundary value problems black hole axisymmetric Einstein equations
2010/4/2
We solve a class of boundary value problems for the stationary axisymmetric Einstein equations corresponding to a disk of dust rotating uniformly around a central black hole. The solutions are given e...
The entropy and mean separation between energy levels of black hole
mean separation energy levels black hole
2010/3/17
According to the widely accepted statistical interpretation of black hole entropy the mean separation between energy levels of black hole should be exponentially small. But this sharply disagrees with...
Gravitational instability of the inner static region of a Reissner-Nordstrom black hole
Gravitational instability black hole inner static region
2010/3/17
Reissner--Nordstr\"om black holes have two static regions: $r > \ro$ and $0 < r < \ri$, where $0 < \ri < \ro$ are the inner and outer horizon radii. The stability of the exterior static region has bee...
We calculate modifications to the Schwarzschild solution by using a semiclassical analysis of loop quantum black hole. We obtain a metric inside the event horizon that coincides with the Schwarzschild...