Quasinormal Modes, Greybody Factors and Rigorous Bounds for Quantum Oppenheimer-Snyder Black Hole with Quintessential Dark Energy and a String Clouds

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Bibliographic Details
Main Authors:	Sajjad, W., Zahid, A., Muawia, M. A., Azam, M.
Format:	Preprint
Published:	2026
Subjects:	General Relativity and Quantum Cosmology
Online Access:	Acceder al recurso
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author	Sajjad, W. Zahid, A. Muawia, M. A. Azam, M.
author_facet	Sajjad, W. Zahid, A. Muawia, M. A. Azam, M.
contents	We obtained quasinormal modes and greybody factors of the quantum Oppenheimer-Snyder (QOS) black hole with quintessential dark energy and string clouds. We compute the effective potentials of the scalar and the vector perturbation fields and analyze their graphical behavior. For this, we compute quasinormal mode frequencies of the QOS black hole, that is surrounded by quintessence dark energy and a cloud of strings and this is done by 6th-order Wentzel-Kramers-Brillouin (WKB) approximation method. We observe the quasinormal frequencies by analyzing both the quintessence parameters and the string cloud parameters. We also examine the GFs by analyzing the role of string cloud ($\tilde{a}_{e}$), quantum deformation ($\tildeσ_{e}$), and quintessence ($\tilde{h}_{e}$) parameters. It is found that GFs are significantly influenced by the parameters of $\tilde{a}_{e}$, $\tildeσ_{e}$, and $\tilde{h}_{e}$. In the case of scalar perturbation, we also give strict limits of the GFs and check the influence of the parameters of $\tilde{a}_{e}$, $\tildeσ_{e}$, and $\tilde{h}_{e}$.
format	Preprint
id	arxiv_https___arxiv_org_abs_2604_24813
institution	arXiv
publishDate	2026
record_format	arxiv
spellingShingle	Quasinormal Modes, Greybody Factors and Rigorous Bounds for Quantum Oppenheimer-Snyder Black Hole with Quintessential Dark Energy and a String Clouds Sajjad, W. Zahid, A. Muawia, M. A. Azam, M. General Relativity and Quantum Cosmology We obtained quasinormal modes and greybody factors of the quantum Oppenheimer-Snyder (QOS) black hole with quintessential dark energy and string clouds. We compute the effective potentials of the scalar and the vector perturbation fields and analyze their graphical behavior. For this, we compute quasinormal mode frequencies of the QOS black hole, that is surrounded by quintessence dark energy and a cloud of strings and this is done by 6th-order Wentzel-Kramers-Brillouin (WKB) approximation method. We observe the quasinormal frequencies by analyzing both the quintessence parameters and the string cloud parameters. We also examine the GFs by analyzing the role of string cloud ($\tilde{a}_{e}$), quantum deformation ($\tildeσ_{e}$), and quintessence ($\tilde{h}_{e}$) parameters. It is found that GFs are significantly influenced by the parameters of $\tilde{a}_{e}$, $\tildeσ_{e}$, and $\tilde{h}_{e}$. In the case of scalar perturbation, we also give strict limits of the GFs and check the influence of the parameters of $\tilde{a}_{e}$, $\tildeσ_{e}$, and $\tilde{h}_{e}$.
title	Quasinormal Modes, Greybody Factors and Rigorous Bounds for Quantum Oppenheimer-Snyder Black Hole with Quintessential Dark Energy and a String Clouds
topic	General Relativity and Quantum Cosmology
url	https://arxiv.org/abs/2604.24813

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