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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Collapsing shells and black holes: a quantum analysis

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Author(s):
Leal, P. [1, 2] ; Bernardini, A. E. [1] ; Bertolami, O. [1, 2]
Total Authors: 3
Affiliation:
[1] Univ Porto, Dept Fis & Astron, Fac Ciencias, Rua Campo Alegre 687, P-4169007 Porto - Portugal
[2] Ctr Fis Porto, Rua Campo Alegre 687, P-4169007 Porto - Portugal
Total Affiliations: 2
Document type: Journal article
Source: Classical and Quantum Gravity; v. 35, n. 11 JUN 7 2018.
Web of Science Citations: 0
Abstract

The quantization of a spherically symmetric null shells is performed and extended to the framework of phase-space noncominutative (NC) quantum mechanics. This shell is considered to be inside a black hole event horizon. The encountered properties are investigated making use of the Israel junction conditions on the shell, considering that it is the boundary between two spherically symmetric spacetimes. Using this method, and considering two different Kantowski-Sachs spacetimes as a representation for the Schwarzschild spacetime, the relevant quantities on the shell are computed, such as its stress-energy tensor and the action for the whole spacetime. From the obtained action, the Wheeler-deWitt equation is deduced in order to provide the quantum framework for the system. Solutions for the wave function of the system are found on both the commutative and NC scenarios. It is shown that, on the commutative version, the wave function has a purely oscillatory behavior in the interior of the shell. In the NC setting, it is shown that the wave function vanishes at the singularity, as well as, at the event horizon of the black hole. (AU)

FAPESP's process: 17/02294-2 - The classical-quantum correspondence of cosmological scenarios from the analysis of Quantum Decoherence and Gaussian correlations
Grantee:Alex Eduardo de Bernardini
Support type: Scholarships abroad - Research