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Black holes in asymptotically anti-de Sitter (AdS) spacetimes have been the subject of intense scrutiny, including detailed frequency-domain analysis and full nonlinear evolutions. Remarkably, studies of linearized perturbations in the…

General Relativity and Quantum Cosmology · Physics 2015-06-23 Vitor Cardoso , Gaurav Khanna

We investigate the thermodynamics, criticality, and selected radiative and optical properties of an Euler-Heisenberg AdS black hole surrounded by quintessence, perfect fluid dark matter, and a cloud of strings. Within the extended…

General Relativity and Quantum Cosmology · Physics 2026-04-29 Faizuddin Ahmed , Edilberto O. Silva

We obtain spherically-symmetric and $\R^2$-symmetric dyonic black holes that are asymptotic to anti-de Sitter space-time (AdS), which are solutions in maximal gauged four-dimensional supergravity, with just one of the U(1) fields carrying…

High Energy Physics - Theory · Physics 2013-11-07 H. Lu , Y. Pang , C. N. Pope

We study the thermodynamical and geometrical behaviour of the black holes that arise as solutions of the heterotic string action. We discuss the near-horizon scaling behaviour of the solutions that are described by two-dimensional Anti-de…

High Energy Physics - Theory · Physics 2009-10-31 M. Cadoni , C. N. Colacino

We investigate the geodesic motion of test particles around a charged Euler-Heisenberg Anti-de Sitter black hole (CEH-AdS-BH) with a cloud of strings (CoS) and surrounded by perfect fluid dark matter (PFDM). Our analysis examines how the…

General Relativity and Quantum Cosmology · Physics 2025-09-17 Faizuddin Ahmed , Ahmad Al-Badawi , İzzet Sakallı

In this paper, we study the thermodynamic behavior of charged AdS black holes in higher-dimensional spacetimes within the framework of conformal holographic extended thermodynamics. This formalism is based on a novel AdS/CFT dictionary in…

High Energy Physics - Theory · Physics 2025-10-31 Yahya Ladghami , Taoufik Ouali

We explore the modified thermodynamics of a Hayward-Anti de Sitter (H-AdS) black hole in atypical conditions, incorporating a string fluid, Hayward regularisation, and quantum entropy corrections. Our analysis reveals a first-order phase…

General Relativity and Quantum Cosmology · Physics 2025-10-07 Shyamalee Bora , Dhruba Jyoti Gogoi , Pralay Kumar Karmakar

We investigate the thermodynamic characteristics of the Reisner-Nordstrom black hole in AdS spacetime with a cloud of strinsg and perfect fluid dark matter background, employing a minor correction to the AdS radius. Although the entropy…

General Relativity and Quantum Cosmology · Physics 2025-12-23 Nazir A. Ganaie

The presence of a photon region around the black hole is an essential feature in receiving the emitted spectrum from the vicinity of the black hole by the distant observer. In this paper, we investigate the optical properties of rotating…

General Relativity and Quantum Cosmology · Physics 2022-07-26 Balendra Pratap Singh , Md Sabir Ali , Sushant~G. ~Ghosh

We investigate the thermodynamic and optical properties of Einstein-Born-Infeld-Anti-de Sitter (EBI-AdS) black holes (BHs). Our study derives the Hawking temperature using standard surface gravity methods and examines quantum corrections…

General Relativity and Quantum Cosmology · Physics 2025-12-16 Ekrem Aydıner , Tekin Dereli , İzzet Sakallı , Erdem Sucu , Ece Seyma Yörük

In this paper, we explore a deformed Schwarzschild black hole (BH) within a loop quantum gravity (LQG) framework incorporating both a quintessence field (QF) and a cloud of strings (CS), aiming to understand how these exotic fields…

General Relativity and Quantum Cosmology · Physics 2025-08-06 Faizuddin Ahmed , Ahmad Al-Badawi , İzzet Sakallı

We use the anti-de Sitter (AdS) conformal field theory correspondence to calculate the conserved charges and the Euclidean actions of the charged rotating black string in four dimensions both in the canonical and the grand-canonical…

High Energy Physics - Theory · Physics 2009-11-07 M. H. Dehghani

The AdS/CFT correspondence is one of the most important discoveries in theoretical physics in recent years. It states that certain quantum mechanical theories can actually be described by classical gravity in one higher dimension, in a…

High Energy Physics - Theory · Physics 2019-09-04 Jonathan Lindgren

Motivated by the possibility of formulating a strings/black hole correspondence in AdS space, we extract the Hagedorn behavior of thermal AdS_3 bosonic string from 1-loop partition function of SL(2,R) WZW model. We find that the Hagedorn…

High Energy Physics - Theory · Physics 2009-04-17 Feng-Li Lin , Toshihiro Matsuo , Dan Tomino

In this paper, we study the thermodynamic behavior of charged AdS black holes in a conformal holographic extended thermodynamic. Our setup is constructed using a new dictionary that relates AdS black hole quantities to the corresponding…

High Energy Physics - Theory · Physics 2024-03-26 Yahya Ladghami , Taoufik Ouali

We study $d$-dimensional $AdS$ black holes surrounded by Dark Energy (DE), embedded in $D$-dimensional M-theory/superstring inspired models having $AdS_d \times \mathbb{S}^{d+k}$ space-time with $D=2d+k$. We focus on the thermodynamic…

High Energy Physics - Theory · Physics 2021-04-21 A. Belhaj , A. El Balali , W. El Hadri , Y. Hassouni , E. Torrente-Lujan

A black string is a solution of the four-dimensional general relativity in cylindrical symmetric anti-de Sitter (AdS) spacetime pioneered by Lemos [6]. We obtain an exact rotating black string surrounded by quintessence matter in anti-de…

General Relativity and Quantum Cosmology · Physics 2019-11-26 Md Sabir Ali , Fazlay Ahmed , Sushant G. Ghosh

The entropy of the universe might decrease if black holes did not have entropy. Hawking's derivation of black hole temperature and the first law of thermodynamics suggest that black holes indeed have entropy. However, Einstein's classical…

High Energy Physics - Theory · Physics 2024-09-09 Siyul Lee

We investigate the thermodynamics of hairy black holes in asymptotically Anti-de Sitter (AdS) space, including backreaction. Resorting to the Euclidean path integral approach, we show that matter conformally coupled to Einstein gravity in…

High Energy Physics - Theory · Physics 2015-06-23 Gaston Giribet , Andres Goya , Julio Oliva

We investigate the quasinormal spectrum of electromagnetic perturbations of rotating black strings. Among the solutions of Einstein equations in the presence of a negative cosmological constant there are asymptotically anti-de Sitter (AdS)…

High Energy Physics - Theory · Physics 2014-08-11 Jaqueline Morgan , Alex S. Miranda , Vilson T. Zanchin