Schwarzschild-AdS Black Holes with Cloud of Strings and Quintessence: Geodesics, Thermodynamic Topology, and Quasinormal Modes

2025/08/10 by Faizuddin Ahmed, Saeed Noori Gashti, Ahmed, Faizuddin +5 · 1 citation
Physics and Astronomy · #Astrophysical Phenomena and Observations #Black Holes and Theoretical Physics #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Theory (hep-th) #Quantum Electrodynamics and Casimir Effect

paper · pdf · doi:10.48550/arxiv.2508.07438

openalex publication_date 2025/08/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

In this study, we explore a Schwarzschild-anti de-Sitter black hole (BH) coupled with a cloud of strings (CoS) possessing both electric- and magnetic-like components of the string bivector, embedded in a Kiselev-type quintessence fluid (QF). We analyze the dynamics of photons and test particles, focusing on trajectories, photon spheres, BH shadows, and innermost stable circular orbits (ISCO), highlighting how CoS and QF parameters affect these features. We then examine the thermodynamic topology of the system by analyzing vector field zeros, showing that varying CoS leads to distinct topological configurations with total charges of either 0 or +1, corresponding to known classes like RN and AdS-RN. Additionally, we study scalar field dynamics via the massless Klein-Gordon equation, reformulated into a Schrodinger-like form to derive the effective potential. We compute the quasinormal modes (QNMs) of scalar perturbations, showing how CoS and QF influence oscillation frequencies and damping rates, with implications for gravitational confinement and thermalization in the AdS/CFT context.

Citations

• AdS Black String in a Cosmic Web: Geodesics, Shadows, and Thermodynamics
• Thermodynamic Topology and Phase Space Analysis of AdS Black Holes Through Non-Extensive Entropy Perspectives
• Non-extensive Entropy and Holographic Thermodynamics: Topological Insights
• Weak Gravity Conjecture Validation with Photon Spheres of Quantum Corrected AdS-Reissner-Nordstrom Black Holes in Kiselev Spacetime
• The role of topological photon spheres in constraining the parameters of black holes
• Thermodynamic topology and photon spheres in the hyperscaling violating black holes
• Bardeen black hole thermodynamics from topological perspective
• Quasinormal modes of black holes and black branes
• Quintessence and black holes

Cited by

• Topological Thermodynamics of Black Holes: Revisiting the methods of winding numbers calculation
• Lyapunov Exponent Approach to Phase Structure of Schwarzschild AdS Black Holes Surrounded by a Cloud of Strings
• A Deep Dive into classical and Topological CFT Thermodynamics in Lifshitz and Hyperscaling Violating Black Holes

Related

• Letelier-AdS Black Hole Surrounded by a Perfect Fluid Dark Matter in the presence of Quintessence
• Noncommutative Geometry Inspired AdS Black Hole with a Cloud of Strings Surrounded by Quintessence-like fluid
• AdS Black Hole Solution with a Dark Matter Halo Surrounded by a Cloud of Strings
• Quantum-Corrected Deformation of RN-AdS Black Holes with a Cloud of Strings Immersed in Quintessential-like Fluid
• AdS Black String in a Cosmic Web: Geodesics, Shadows, and Thermodynamics