J
2020
Quantum fate of timelike naked singularity with scalar hair
SVITEK, O., Tayebeh TAHAMTAN and Adamantia ZAMPELI
Basic information
Original name
Quantum fate of timelike naked singularity with scalar hair
Authors
SVITEK, O., Tayebeh TAHAMTAN (364 Islamic Republic of Iran, belonging to the institution) and Adamantia ZAMPELI
Edition
ANNALS OF PHYSICS, 2020, 0003-4916
Other information
Type of outcome
Článek v odborném periodiku
Field of Study
10300 1.3 Physical sciences
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
RIV identification code
RIV/47813059:19630/20:A0000021
Organization unit
Institute of physics in Opava
Keywords in English
Exact solution; Singularity; Scalar field; Quantum gravity; Dirac equation; Klein-Gordon equation
Tags
International impact, Reviewed
Links
GA17-16287S, research and development project. LTI17018, research and development project.
V originále
We study the quantum fate of a naked curvature singularity sourced by a scalar field via several methods and compare the results obtained. The first method relies on relativistic quantum mechanics on a fixed background employing the Klein-Gordon and the Dirac equations for a static spacetime. We show that both the Klein-Gordon and the Dirac particles feel this singularity therefore this method does not provide its resolution. For comparison, we subsequently employ methods for quantizing the geometry itself. We selected the canonical quantization via conditional symmetries and as a last approach we use a maximal acceleration derivation in the covariant loop quantum gravity. In both of these approaches the singularity is resolved at the quantum level. We discuss these conflicting results bearing in mind that quantum particles probe classical geometry in the first approach while the last two methods quantize the geometry itself.
Displayed: 24/12/2024 03:46