On the nature of black holes in loop quantum gravity
On the nature of black holes in loop quantum gravity
复制标题
论圈量子引力中黑洞的性质
DOI:
10.1088/0264-9381/30/1/015005
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发表时间:
2013
影响因子:
3.5
通讯作者:
C. Röken
中科院分区:
文献类型:
--
作者:
C. Röken
A genuine notion of black holes can only be obtained in the fundamental framework of quantum gravity resolving the curvature singularities and giving an account of the statistical mechanical, microscopic degrees of freedom able to explain the black hole thermodynamical properties. As for all quantum systems, a quantum realization of black holes requires an operator algebra of the fundamental observables of the theory which is introduced in this study based on aspects of loop quantum gravity. From the eigenvalue spectra of the quantum operators for the black hole area, charge and angular momentum, it is demonstrated that a strict bound on the extensive parameters, different from the relation arising in classical general relativity, holds, implying that the extremal black hole state can neither be measured nor can its existence be proven. This is, as turns out, a result of the specific form of the chosen angular momentum operator and the corresponding eigenvalue spectrum, or rather the quantum measurement process of angular momentum. Quantum-mechanical considerations and the lowest, non-zero eigenvalue of the loop quantum gravity black hole mass spectrum indicate, on the one hand, a physical Planck scale cutoff of the Hawking temperature law and, on the other hand, give upper and lower bounds on the numerical value of the Immirzi parameter. This analysis provides an approximative description of the behavior and the nature of quantum black holes.
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影响因子:
3.5
作者:
Eugenio Bianchi
通讯作者:
Eugenio Bianchi
影响因子:
5
作者:
Ernesto Frodden;Amit Ghosh;Alejandro Perez
通讯作者:
Ernesto Frodden;Amit Ghosh;Alejandro Perez
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
K. Krasnov;C. Rovelli
通讯作者:
C. Rovelli
影响因子:
8.6
作者:
I. Agulló;J. Barbero G.;Jacobo Díaz;Enrique Fernández;Eduardo J S Villaseñor
通讯作者:
Eduardo J S Villaseñor
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
J. Bekenstein
通讯作者:
J. Bekenstein