J 2025

Spinning particle motion around charged black hole from T-duality

RAKHIMOVA, Gulzoda; Farukh ABDULKHAMIDOV; Farruh ATAMUROTOV; Ahmadjon ABDUJABBAROV; G. MUSTAFA et al.

Základní údaje

Originální název

Spinning particle motion around charged black hole from T-duality

Autoři

RAKHIMOVA, Gulzoda; Farukh ABDULKHAMIDOV; Farruh ATAMUROTOV; Ahmadjon ABDUJABBAROV a G. MUSTAFA

Vydání

CHINESE JOURNAL OF PHYSICS, 2025, 0577-9073

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 4.600 v roce 2024

Organizační jednotka

Fyzikální ústav v Opavě

DOI

https://doi.org/10.1016/j.cjph.2024.08.036

UT WoS

001420479200001

EID Scopus

2-s2.0-85216100273

Klíčová slova anglicky

Spinning particle motion;Charged black hole;T-duality

Štítky

RIV26, SGS-30-2023, UF

Příznaky

Mezinárodní význam, Recenzováno

Návaznosti

GA23-07043S, projekt VaV.
Změněno: 27. 1. 2026 13:30, Mgr. Pavlína Jalůvková

Anotace

V originále

This study examines a spinning particle motion around a charged black hole from T-duality. Initially, our investigation focuses on the lapse function of the metric, revealing that the presence of the black hole's charge solely induces a shift in the location of the black hole's horizon. However, with the introduction of l0, we observe the emergence of the second Cauchy horizon (r-). Additionally, we determine the maximum values of black hole parameters within the T-duality framework, guided by the criterion for the existence of the black hole horizon. We employ the Mathisson-Papapetrous-Dixon (MPD) equation to analyze the dynamics of the spinning test particles. Our exploration delves into the influence of the particle's spin and associated parameters Q and l0 on the effective potential. Subsequently, we investigate the innermost stable circular orbit (ISCO) to establish relationships between the particle's energy, angular momentum at ISCO, ISCO radius, and the particle's spin, along with black hole parameters from T-duality. We also focus on superluminal motion, a crucial characteristic distinguishing time-like particles from space-like ones. Numerical values for the particle's critical spin (smax) necessary to maintain time-like behavior are determined. Finally, we address the collision of spinning particles in the proximity of a compact object. Within this context, we endeavor to identify critical values of the particle's angular momentum, permitting particles to approach the compact object closely.
Zobrazeno: 30. 1. 2026 06:57