Spectroscopy of a canonically quantized horizon

  title={Spectroscopy of a canonically quantized horizon},
  author={Mohammad H. Ansari},
  journal={Nuclear Physics},
  • M. Ansari
  • Published 12 July 2006
  • Physics
  • Nuclear Physics

Figures and Tables from this paper

Black hole radiation spectrum in LQG: Isolated Horizon framework
Recent detailed analysis within the Loop Quantum Gravity calculation of black hole entropy shows a stair-like structure in the behavior of entropy as a function of horizon area. The non-trivial
Toward explaining black hole entropy quantization in loop quantum gravity
In a remarkable numerical analysis of the spectrum of states for a spherically symmetric black hole in loop quantum gravity, Corichi, Diaz-Polo and Fernandez-Borja found that the entropy of the black
Remarks on Spectroscopy via Adiabatic Invariance from the Kerr Black Hole
By imposing Bohn-Sommerfeld quantization rule and the laws of black hole thermodynamics to the modified adiabatic covariant action, the spectroscopy of the Kerr black hole is obtained in different
Entropy quantization of Reissner-Nordström de Sitter black hole via adiabatic covariant action
Based on the ideas of adiabatic invariant quantity, we attempt to quantize the entropy of a charged black hole in de Sitter spacetime in two different coordinates. The entropy spectrum is obtained by
Area spectrum of horizon and black hole entropy
We calculate the number of degrees of freedom in spin network states related to the general area spectrum in loop quantum gravity based on the ABCK framework. We find that a black hole entropy (the
Spectroscopy from the d-dimensional Reissner–Nordström black hole via adiabatic covariant action
Via modified adiabatic invariant I=∮pi dqi, we investigate the area spectrum of the d-dimensional Reissner–Nordström black hole in two different coordinate frames. Emphasis is given to covariance of
Quantum amplification effect in a horizon fluctuation
The appearance of a few unevenly spaced bright flashes of light on top of Hawking radiation is the sign of the amplification effect in black hole horizon fluctuations. Previous studies on this
Entropy in spin foam models: the statistical calculation
Recently an idea for computing the entropy of black holes in the spin foam formalism has been introduced. Particularly complete calculations for the three-dimensional Euclidean BTZ black hole were
Spin foam models: the dynamics of quantum geometry
In this paper, we give an overview of the main techniques developed in the context of background independent gravity in order to tackle the problem of the dynamics. We briefly introduce loop quantum


Spectroscopy of the quantum black hole
Quantum black holes from null expansion operators
Using a recently developed quantization of spherically symmetric gravity coupled to a scalar field, we give a construction of null expansion operators that allow a definition of general, fully
Physics with nonperturbative quantum gravity: Radiation from a quantum black hole
We study quantum gravitational effects on black hole radiation, using loop quantum gravity. Bekenstein and Mukhanov have recently considered the modifications caused by quantum gravity on Hawking's
Quasinormal modes, the area spectrum, and black hole entropy.
A result from classical gravity concerning the quasinormal mode spectrum of a black hole is used to fix the Immirzi parameter and the Bekenstein-Hawking expression of A/4l(2)(P) for the entropy of ablack hole is arrived at.
Quantum geometry of isolated horizons and black hole entropy
Using the earlier developed classical Hamiltonian framework as the point of departure, we carry out a non-perturbative quantization of the sector of general relativity, coupled to matter, admitting
Generic predictions of quantum theories of gravity
I discuss generic consequences (sometimes called “soft predictions”) of a class of background independent quantum theories of spacetime called causal spin network theories. These are theories whose
Generic degeneracy and entropy in loop quantum gravity
On Quantum Statistical Mechanics of a Schwarzschild Black Hole
Quantum theory of geometry, developed recently in the framework of non-perturbative quantum gravity, is used in an attempt to explain thermodynamics of Schwarzschild black holes on the basis of a
Interface of General Relativity, Quantum Physics and Statistical Mechanics: Some Recent Developments
The arena normally used in black holes thermodynamics was recently generalized to incorporate a broad class of physically interesting situations. The key idea is to replace the notion of stationary