Critical behavior of AdS black holes surrounded by dark fluid with Chaplygin-like equation of state

XQ Li, HP Yan, LL Xing, SW Zhou - Physical Review D, 2023 - APS
Supposing the existence of dark fluid with a Chaplygin-like equation of state p=-B/ρ (CDF)
as a cosmic background, we obtain a static spherically symmetric black hole (BH) solution to …

Phase structure of charged AdS black holes surrounded by exotic fluid with modified Chaplygin equation of state

Y Sekhmani, J Rayimbaev, GG Luciano… - The European Physical …, 2024 - Springer
By considering the concept of the modified Chaplygin gas (MCG) as a single fluid model
unifying dark energy and dark matter, we construct a static, spherically charged black hole …

Particle motion and thermal fluctuations of charged AdS black holes surrounded by exotic fluid with modified Chaplygin equation of state

F Javed, A Waseem, G Mustafa, G Fatima… - Physics of the Dark …, 2025 - Elsevier
This study explores the intricate relationships between thermodynamic properties and
particle dynamics of charged AdS black holes, emphasizing the impacts of charge Q and …

Quasinormal modes and greybody bounds of black holes endowed with modified Chaplygin gas

Y Sekhmani, DJ Gogoi, SK Maurya… - Journal of High Energy …, 2025 - Elsevier
This paper investigates the quasinormal modes and greybody factors of black holes with
modified Chaplygin gas. Applying the WKB approximation method, we analyze the impact of …

Cosmological phase space analysis of the F (X)<? format?>-<? format?> V (ϕ) scalar field and bouncing solutions

J De-Santiago, JL Cervantes-Cota, D Wands - Physical Review D—Particles …, 2013 - APS
We analyze the dynamical system defined by a universe filled with a barotropic fluid plus a
scalar field with modified kinetic term of the form L= F (X)-V (ϕ). After a suitable choice of …

Dynamical system analysis of dark energy models in scalar coupled metric-torsion theories

AS Bhatia, S Sur - International Journal of Modern Physics D, 2017 - World Scientific
We study the phase-space dynamics of cosmological models in the theoretical formulations
of nonminimal metric-torsion couplings with a scalar field, and investigate in particular the …

Wormholes supported by f (𝒢) gravity

M Sharif, A Ikram - International Journal of Modern Physics D, 2015 - World Scientific
This paper is devoted to study the traversable wormhole (WH) solutions in the context of f (𝒢)
gravity. For this purpose, we consider the viable power-law form f (𝒢)= a𝒢n as well as …

Approximation of the potential in scalar field dark energy models

RA Battye, F Pace - Physical Review D, 2016 - APS
We study the nature of potentials in scalar field based models for dark energy—with both
canonical and noncanonical kinetic terms. We calculate numerically, and using an analytic …

Cosmological evolution of equation of state for dark energy in G-essence models

K Bamba, O Razina, K Yerzhanov… - International Journal of …, 2013 - World Scientific
We explore the cosmological evolution of equation of state (EoS) for dark energy in g-
essence models, the action of which is described by a function of both the canonical kinetic …

Weakly dynamic dark energy via metric-scalar couplings with torsion

S Sur, AS Bhatia - Journal of Cosmology and Astroparticle …, 2017 - iopscience.iop.org
We study the dynamical aspects of dark energy in the context of a non-minimally coupled
scalar field with curvature and torsion. Whereas the scalar field acts as the source of the …