A new thermodynamic inequality 4πJ²/(3MV) < 1 is derived for rotating AdS black holes to prevent naked singularities and uphold cosmic censorship.
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An off-shell Hessian criterion H = S'_W(r_h) T'(r_h) governs thermodynamic stability of higher-curvature black holes, recovering the temperature-slope rule on physical branches and producing mean-field critical exponents.
Time-reversed Shannon entropy distinguishes chaotic from regular orbits in Kerr and Schwarzschild-Melvin spacetimes by quantifying forward-backward asymmetry in probability distributions.
The O(α) correction to entanglement entropy of a non-minimally coupled self-interacting scalar across a Schwarzschild horizon is proportional to (1/6 - ξ), with divergences that renormalize Newton's constant while preserving the black hole area law.
Lyapunov exponents of charged probes capture the same cusp and transition points in dilatonic RN-AdS phase structure across Einstein and string frames, even though the exponent values themselves depend on frame for massive particles.
A residue-based approach in f(Q) gravity claims that thermodynamic Hessian degeneracy in the extended state space produces corresponding shifts in quasinormal-mode frequencies, Lyapunov exponents, damping times, and near-horizon monodromy.
Simpson-Visser regularization of Schwarzschild-AdS black holes yields a van der Waals-type temperature branch structure with three coexisting equilibria and topological charge W=+1 for regularization parameter below 1/sqrt(24), distinguishing it from the Schwarzschild-AdS case.
Black hole thermodynamic criticality exhibits universal relaxation scaling and critical slowing down determined by local bifurcation structures.
An RG-improved Schwarzschild metric with de Sitter core is studied for shadow radius, scalar/EM/Dirac quasinormal modes via WKB and time-domain methods, SCC compliance at the inner horizon, and a Davies-type thermodynamic phase transition.
Rényi entropic corrections to cosmology are constrained by DESI DR2 BAO and GW data to a viable quintessence-like model that approaches ΛCDM without phantom behavior and satisfies BBN bounds.
Generalized horizon entropy models satisfy BBN constraints on helium and deuterium abundances when parameters are chosen for cosmic acceleration, though lithium remains discrepant as in standard cosmology.
A van der Waals-inspired modification to general relativity renders the gravitational coupling dynamical, providing a mechanism to avoid Big Bang and black hole singularities.
The paper argues flat minima are an illusion and that a reparameterization-invariant 'weakness' score predicts generalization where raw sharpness fails.
A new action for entanglement entropy in AdS3/CFT2 derives gravity equations, reduces to a string worldsheet, reproduces bit threads, and unifies several quantum gravity conjectures.
QPO frequencies in RN AdS and Kerr geometries trace distinct thermodynamic phases and their stability when plotted against Hawking temperature.
Spatial entropy can fall as webs form while phase-space entropy rises; anisotropy is cast as a free-energy order parameter that activates earlier for nonlocal tidal operators than for local curvature.
New exact charged black-string solution in Einstein gravity coupled to Kiselev quintessence plus string cloud, with horizon, curvature, energy-condition, thermodynamic, and null-geodesic analysis.
Negative quantum states from discrete Wigner functions show resilience advantages over Bell states under non-Markovian dynamics, are protected via weak measurements, and are realized on IBM superconducting hardware.
Exact 4D black string in AdS with perfect fluid dark matter, metric modified by log term in α, horizons via Lambert W function, heat capacity diverges for α>0 suggesting phase transition where weak energy condition violated.
Hawking radiation induces a qualitative softening or complete avoidance of the Big Rip singularity in this viscous dark-fluid entropic cosmology.
The bounded discrete thermal weight suppresses black-hole Hawking luminosity near the cutoff and supports an exact Jarzynski identity for work but not a simple Crooks relation.
A two-parameter extension of Bekenstein entropy is applied to derive the Friedmann equations and confirm thermodynamic consistency for an accelerating universe via entropy balance and maximization.
Increasing the asymptotic safety parameter and spin shrinks the shadow size while increasing its distortion for a rotating Bardeen black hole, with monopole charge shaping the profile and energy emission rates also computed.
A review of string-inspired dynamical dark energy models claiming compatibility with DESI's hints of evolving dark energy under swampland constraints.
citing papers explorer
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Novel thermodynamic inequality for rotating AdS black holes
A new thermodynamic inequality 4πJ²/(3MV) < 1 is derived for rotating AdS black holes to prevent naked singularities and uphold cosmic censorship.
-
Off-shell Hessian thermodynamic stability of higher-curvature black holes
An off-shell Hessian criterion H = S'_W(r_h) T'(r_h) governs thermodynamic stability of higher-curvature black holes, recovering the temperature-slope rule on physical branches and producing mean-field critical exponents.
-
Time-reversed Shannon entropy as a chaos indicator for non-integrable systems
Time-reversed Shannon entropy distinguishes chaotic from regular orbits in Kerr and Schwarzschild-Melvin spacetimes by quantifying forward-backward asymmetry in probability distributions.
-
Entanglement Entropy of a Non-Minimally Coupled Self-Interacting Scalar across a Schwarzschild Horizon at $\mathcal{O}(\alpha)$
The O(α) correction to entanglement entropy of a non-minimally coupled self-interacting scalar across a Schwarzschild horizon is proportional to (1/6 - ξ), with divergences that renormalize Newton's constant while preserving the black hole area law.
-
Phase Transitions with Lyapunov Exponents under Einstein and String Frames in Dilatonic Reissner--Nordstr\"om--AdS Black Holes
Lyapunov exponents of charged probes capture the same cusp and transition points in dilatonic RN-AdS phase structure across Einstein and string frames, even though the exponent values themselves depend on frame for massive particles.
-
Thermodynamic-Geometric Phase Transition and Gravitational-Wave Quasinormal Modes of Schwarzschild Black Holes in $f(Q)$ Gravity: An RVB-Residue Approach
A residue-based approach in f(Q) gravity claims that thermodynamic Hessian degeneracy in the extended state space produces corresponding shifts in quasinormal-mode frequencies, Lyapunov exponents, damping times, and near-horizon monodromy.
-
Holographic Thermodynamic Signatures of Simpson--Visser--AdS Black Holes
Simpson-Visser regularization of Schwarzschild-AdS black holes yields a van der Waals-type temperature branch structure with three coexisting equilibria and topological charge W=+1 for regularization parameter below 1/sqrt(24), distinguishing it from the Schwarzschild-AdS case.
-
Degenerate Bifurcations and Universal Relaxation Scaling in Black Hole Thermodynamics
Black hole thermodynamic criticality exhibits universal relaxation scaling and critical slowing down determined by local bifurcation structures.
-
Renormalization-group improved Schwarzschild black hole: shadow, ringdown, and strong cosmic censorship
An RG-improved Schwarzschild metric with de Sitter core is studied for shadow radius, scalar/EM/Dirac quasinormal modes via WKB and time-domain methods, SCC compliance at the inner horizon, and a Davies-type thermodynamic phase transition.
-
Exploring Cosmic Evolution in R\'enyi Entropic Cosmology with Constraints from DESI DR2 BAO and GW Data
Rényi entropic corrections to cosmology are constrained by DESI DR2 BAO and GW data to a viable quintessence-like model that approaches ΛCDM without phantom behavior and satisfies BBN bounds.
-
Viability of Big Bang Nucleosynthesis in Some Generalized Horizon Entropies
Generalized horizon entropy models satisfy BBN constraints on helium and deuterium abundances when parameters are chosen for cosmic acceleration, though lithium remains discrepant as in standard cosmology.
-
Van der Waals Gravity Theory
A van der Waals-inspired modification to general relativity renders the gravitational coupling dynamical, providing a mechanism to avoid Big Bang and black hole singularities.
-
Are Flat Minima an Illusion?
The paper argues flat minima are an illusion and that a reparameterization-invariant 'weakness' score predicts generalization where raw sharpness fails.
-
Toward a worldsheet theory of entanglement entropy
A new action for entanglement entropy in AdS3/CFT2 derives gravity equations, reduces to a string worldsheet, reproduces bit threads, and unifies several quantum gravity conjectures.
-
Probing Black Hole Phase Transitions through Quasi-Periodic Oscillations
QPO frequencies in RN AdS and Kerr geometries trace distinct thermodynamic phases and their stability when plotted against Hawking temperature.
-
Emergence of Complex Web Structures
Spatial entropy can fall as webs form while phase-space entropy rises; anisotropy is cast as a free-energy order parameter that activates earlier for nonlocal tidal operators than for local curvature.
-
Charged black string immersed in a quintessence fluid and string cloud
New exact charged black-string solution in Einstein gravity coupled to Kiselev quintessence plus string cloud, with horizon, curvature, energy-condition, thermodynamic, and null-geodesic analysis.
-
Discrete and Continuous Wigner Functions in Open Quantum Systems: Non-Markovian and Thermodynamic Effects
Negative quantum states from discrete Wigner functions show resilience advantages over Bell states under non-Markovian dynamics, are protected via weak measurements, and are realized on IBM superconducting hardware.
-
Black string immersed in perfect fluid dark matter
Exact 4D black string in AdS with perfect fluid dark matter, metric modified by log term in α, horizons via Lambert W function, heat capacity diverges for α>0 suggesting phase transition where weak energy condition violated.
-
Singularity softening and avoidance by the action of thermal radiation in a generalized entropic cosmology
Hawking radiation induces a qualitative softening or complete avoidance of the Big Rip singularity in this viscous dark-fluid entropic cosmology.
-
Bounded thermal weights from a discrete Boltzmann factor
The bounded discrete thermal weight suppresses black-hole Hawking luminosity near the cutoff and supports an exact Jarzynski identity for work but not a simple Crooks relation.
-
Generalized Mass-to-Horizon Entropy and Horizon Thermodynamics
A two-parameter extension of Bekenstein entropy is applied to derive the Friedmann equations and confirm thermodynamic consistency for an accelerating universe via entropy balance and maximization.
-
EHT-Constrained Analysis of Shadow Deformation in Quantum-Improved Rotating Non-Singular Magnetic Monopole
Increasing the asymptotic safety parameter and spin shrinks the shadow size while increasing its distortion for a rotating Bardeen black hole, with monopole charge shaping the profile and energy emission rates also computed.
-
Breaking Free from the Swampland of Impossible Universes through the DESI Portal
A review of string-inspired dynamical dark energy models claiming compatibility with DESI's hints of evolving dark energy under swampland constraints.
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Tidal Response of Compact Objects
This review summarizes tidal Love numbers and dissipation effects for black holes, neutron stars, and exotic objects, noting vanishing static bosonic Love numbers for black holes in GR but nonzero values for fermions and exotic objects, with implications for gravitational-wave astronomy.
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Krylov Complexity
Krylov complexity is a canonical, parameter-independent measure of operator spreading that probes chaotic dynamics to late times and admits a geometric interpretation in holographic duals.
- Microcanonical Energy Sharing and a Page-like Curve for the Capacity of Entanglement
- Model-independent reconstruction of cosmic thermodynamics and dark energy dynamics