SVITEK, O., Tayebeh TAHAMTAN and Adamantia ZAMPELI. Quantum fate of timelike naked singularity with scalar hair. ANNALS OF PHYSICS. 2020, vol. 418, July, p. "168195-1"-"168195-18", 18 pp. ISSN 0003-4916. Available from: https://dx.doi.org/10.1016/j.aop.2020.168195.
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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
Original language English
Type of outcome Article in a journal
Field of Study 10300 1.3 Physical sciences
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/47813059:19630/20:A0000021
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.1016/j.aop.2020.168195
UT WoS 000540218200022
Keywords in English Exact solution; Singularity; Scalar field; Quantum gravity; Dirac equation; Klein-Gordon equation
Tags FÚ, FÚ2020, GA17-16287S, LTI17018, RIV21
Tags International impact, Reviewed
Links GA17-16287S, research and development project. LTI17018, research and development project.
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 26/4/2022 19:14.
Abstract
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.
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