Self-Gravitation of Mode Quanta in a Causal Resonator: One-Loop Finiteness in Linearized Quantum Gravity and the Emergence of the Dark-Energy ScalePerturbative quantum gravity is ultraviolet divergent and, as shown by 't Hooft and Veltman, non-renormalizable. A recent object-relative, Lorentz-invariant weighting of internal electromagnetic…Christian Rembe·Sep 13, 2026SaveLearn
Localization of Vector and Fermion Fields on a Thick Brane with a Lump-type Scalar BackgroundWe study a thick braneworld model in asymptotically anti-de Sitter spacetime, supported by a non-topological lump-type scalar field. Unlike in boson stars, which are also non-topological solutions,…Jun-Tong Zhou, Zhen-Hua Zhao·Sep 13, 2026SaveLearn
Perturbations and quasinormal modes of black holes in general relativity coupled to nonlinear electrodynamicsWe investigate the quasinormal spectra and time-domain evolution of scalar, electromagnetic, and gravitational perturbations of the Einstein-Bronnikov black hole in Einstein gravity coupled to…Uktamjon Uktamov, Bakhtiyor Narzilloev, Ibrar Hussain et al.·Sep 13, 2026SaveLearn
Parameter Estimation of Ringdown Quasinormal Modes with AutoencoderRingdown gravitational waves from binary black hole mergers can be modeled as superpositions of quasinormal modes (QNMs), whose frequencies and excitation factors encode properties of the remnant…Momoka Iida, Hayato Motohashi, Hirotaka Takahashi·Sep 13, 2026SaveLearn
Simulation of PBH formation in a matter-dominated universeWe investigate primordial black hole (PBH) formation during an early matter-dominated era using fully nonlinear numerical relativity. The initial condition is set by a functional form of the…Chul-Moon Yoo, Albert Escrivà, Tomohiro Harada et al.·Sep 13, 2026SaveLearn
From massless wormholes to massive black bounces: Shadows and multiple light ringsWe develop a general framework for constructing massive black bounce geometries from massless wormhole seeds by introducing a position-dependent mass function while preserving the underlying…G. Alencar, Kirill A. Bronnikov, T. M. Crispim et al.·Sep 13, 2026SaveLearn
Traversable Hyperbolic Wormholes with a Casimir-Memory Source: Complexity and Shell-Free MatchingHyperbolically symmetric wormholes provide a setting in which negative energy densities arise from the throat geometry and finite matter configurations can be matched to the hyperbolic Schwarzschild…Celio R. Muniz, Roberto Avalos, Jonathan A. Rebouças et al.·Sep 12, 2026SaveLearn
Quantum black hole ringdownThe ringdown of a black hole following a merger is a potential candidate for revealing the signatures of quantum gravity in the emerging gravitational waves. In quantum theory, black holes are…Konstantinos Topaloglou, Elena Cuoco, Roberto Casadio·Sep 12, 2026SaveLearn
Black Hole Solutions with Scalar Fields and Anisotropic Matter in Non-Minimal Y(R)F2 GravityWe investigate exact spherically symmetric and static black hole solutions in a non-minimally coupled Einstein--Maxwell theory of the Y(R)F2 type, extended by a minimally coupled real scalar field…Özcan Sert·Sep 12, 2026SaveLearn
On the Classical, Penrose, and Reverse Isoperimetric Inequalities in Black Holes: Insights From AdS to Flat Riemannian BackgroundsA collection of evidence is presented showing that the conjectured reverse isoperimetric inequality (RII) for asymptotically anti-de Sitter (AdS) as well as de Sitter (dS) black holes, $…Robert B. Mann, Behnam Pourhassan, Ali Dehghani·Sep 12, 2026SaveLearn
Extended Generalized Uncertainty Principle Corrections to Five Dimensional Einstein Gauss Bonnet Black Hole ThermodynamicsWe study the thermodynamics of asymptotically flat five dimensional Einstein Gauss Bonnet black holes within the framework of the extended generalized uncertainty principle (EGUP). The geometry…Erdinç Ulaş Saka, Bekir Can Lütfüpoğlu·Sep 12, 2026SaveLearn
Quasinormal modes of a charged covariant loop quantum black holeThis paper focuses on the quasinormal modes of a charged loop quantum black hole that preserves diffeomorphism covariance. We have examined the influence of the black hole charge Q and the quantum…Biao Zhou·Sep 12, 2026SaveLearn
A new parametric study of f(T) teleparallel gravity with generalized Chaplygin gas: Confronting observational dataIn this paper, we investigate the cosmological dynamics of a modified gravity framework based on the function f(T)=β(-T)1/2+γ(-T), where T denotes the torsion scalar. The matter sector is…Khomesh R. Patle, G. P. Singh·Sep 12, 2026SaveLearn
Canonical-Ensemble Stability of the Quantum Oppenheimer-Snyder Black-Hole ExteriorWe study the local canonical thermodynamics of the quantum Oppenheimer--Snyder (qOS) black-hole exterior previously obtained from loop quantum cosmology. The spacetime is adopted from the literature;…Wen-Xiang Chen·Sep 12, 2026SaveLearn
Frequency shift in gravitational lensing by Kerr metricIn this study, we calculate the relative frequency shift (Δν/ ν) caused by gravitational lensing resulting from the transverse motion of a spinning lens described by the Kerr metric…Samaneh Sarbaz, Sohrab Rahvar·Sep 12, 2026SaveLearn
Nonequilibrium Apparent-Horizon Thermodynamics in Effective Loop Quantum CosmologyIn this work, we investigate the thermodynamic consistency of the apparent horizon in effective loop quantum cosmology (LQC). By retaining the standard definitions of horizon thermodynamic…Xiao Liu·Sep 12, 2026SaveLearn
Effective Matter Conversion in Gravitational Collapse and the Dynamical Formation of Regular Black HolesWe study inverse source reconstruction in generalized Vaidya spacetimes. A prescribed density fixes the mass and tangential pressure, while a two-sector decomposition determines a dimensionless…Emmanuele Battista, Ali Ovgun, Vitalii Vertogradov·Sep 12, 2026SaveLearn
Static Spherically Symmetric Solutions in Nonconservative Unimodular GravityThe traceless field equations of unimodular gravity determine the source of a given geometry only up to a pure-trace contribution. We study the consequences of this reconstruction freedom for a…Anuar Idrissov, Hernando Quevedo·Sep 12, 2026SaveLearn
From Geometry to Gravity: A Friendly Introduction to the Schwarzschild MetricThe first exact solution to the field equations of general relativity was found by the German physicist and astronomer Karl Schwarzschild in 1916. Due to its simplicity and its various astronomical…Jorge Pinochet·Sep 11, 2026SaveLearn
First-Law Entropy and a Degenerate Extremal Remnant in a Minimal-Length Simpson--Visser-Type Regular Black Hole: Geometrothermodynamics, Phase Structure, and Observational DiscriminantsWe construct the first-law-consistent entropy of a geometrically minimal-length-deformed Schwarzschild spacetime, obtained via the areal-radius substitution R(r)=r2+2 on…T. Toghrai, N. Mansour, A. Daassou et al.·Sep 11, 2026SaveLearn
Effects of the Ekpyrotic Mechanism on Inflationary Phase in mLQC-IIBouncing cosmological models replace the big bang singularity with a regular bounce, but face a well-known obstacle: the anisotropic shear grows as a(-6) during contraction, where a is the average…Jared Fier, Aqsa Fareed, Reena Danika Bendukuri et al.·Sep 11, 2026SaveLearn
Unitary evolution of an evaporating black hole in canonical quantum gravityWe propose a framework for understanding the information loss paradox in the context of canonical quantum gravity. We first revisit several approaches to black hole evaporation that do not involve an…Sijia Wang, Robert B. Mann, Dong-han Yeom·Sep 11, 2026SaveLearn
Tidal Love numbers of wormholes as black-hole mimickersWe study the dynamical scalar tidal Love numbers of wormholes that provide viable mimickers for black holes, focusing on thin-shell Schwarzschild and Damour-Solodukhin geometries. Using a matched…Sergey N. Solodukhin, Vagif Tagiev·Sep 11, 2026SaveLearn
Particlelike solutions of the Einstein-Dirac-Higgs equations: ground, excited, and many-fermion statesWe present an extended study of the gravitationally localized soliton-like solutions to the minimally-coupled Einstein-Dirac-Higgs equations, embedded in asymptotically Minkowski spacetimes. The…Reinosuke Kusano, Keith Horne, Peter E. D. Leith et al.·Sep 11, 2026SaveLearn
cWB-space: A time-frequency transient-search pipeline for LISAGravitational-wave observations can reveal sources whose signals are not known in advance. Searches that do not require a predicted waveform are therefore an important complement to searches for…Shubhanshu Tiwari, Yumeng Xu, Giovanni A. Prodi·Sep 11, 2026SaveLearn