Born-Infeld AdS Black Holes Surrounded by Perfect Fluid Dark MatterWe obtain exact charged AdS black hole solutions in Einstein Lambda gravity including the effects of Born Infeld nonlinear electrodynamics and Perfect Fluid Dark Matter. The influence of the PFDM and…Behzad Eslam Panah, Bilel Hamil, Manuel E. Rodrigues·Mar 15, 2026SaveLearn
Freezing lakes as analogue models of ΛCDM cosmology and beyondWe extend previous conduction-based analogies between ice growth in a lake and cosmological expansion by incorporating buoyancy-driven heat transport. Reformulating the Stefan problem with both…Lorens F. Niehof, Ananya Venkatasubramanian, Federico Toschi et al.·Mar 15, 2026SaveLearn
Multi-Field Dilaton Screening Beyond the Thin-Shell MechanismWe analyse screening in multi-field scalar-tensor theories, focusing on systems with a dilaton coupled to matter and an axion with a dilaton-dependent kinetic term, in the presence of both planetary…Philippe Brax, Carsten van de Bruck, Anne-Christine Davis et al.·Mar 14, 2026SaveLearn
Further Results on Null and Force-free Electromagnetic FieldsThe theory of Force-Free Electrodynamics (FFE) provides a robust framework for modeling the magnetospheres of compact objects, where the electromagnetic field's energy density dominates the…Govind Menon, Rakshak Adhikari·Mar 14, 2026SaveLearn
On Radiative Fluxes and Coulombic Charges in the Balance Law for Black Hole EvaporationIn asymptotically-flat spacetimes, there is a clear distinction between radiative fluxes and Coulombic charges. Using the Wald-Zoupas prescription, we identify the classical radiative flux of a…Eugenio Bianchi, Daniel E. Paraizo·Mar 13, 2026SaveLearn
Properties of strange quark stars in f(Q) gravity: A baryon number density-dependent perspectiveWe study anisotropic strange quark stars in f(Q) gravity, incorporating a baryon-number-density-dependent bag function B(n) into the MIT bag equation of state, p=[ρ-4B(n)]/3. Motivated by a…Sourav Biswas, Debadri Bhattacharjee, Pradip Kumar Chattopadhyay et al.·Mar 13, 2026SaveLearn
Analytical derivation of long-term dephasing caused by phase transitions in the context of Kerr black holesExtreme Mass Ratio Inspirals (EMRIs) constitute a prime target for future space-based gravitational-wave observatories such as LISA. In this paper, we analytically investigate the long-term phase…Jingxu Wu, Liangyu Luo, Jie Shi·Mar 13, 2026SaveLearn
One-dimensional subspaces of the SL(n,R) Chiral EquationsIn this work we find solutions of the (n+2)-dimensional Einstein Field Equations (EFE) with n commuting Killing vectors in vacuum. In the presence of n Killing vectors, the EFE can be separated…I. A. Sarmiento-Alvarado, Petra Wiederhold, Tonatiuh Matos·Mar 13, 2026SaveLearn
Topological Phase Transitions in Superfluids Near Black Hole HorizonsWe investigated a two-dimensional superfluid model immersed in a black hole spacetime and hypothesize that if a black hole collides with a thin superfluid film, it will trigger a topological phase…Cristian R. Ghezzi, Paulo S. Custodio·Mar 13, 2026SaveLearn
A new approach to the calculation of extreme-mass-ratio inspirals with a spinning secondaryExtreme-mass-ratio inspirals (EMRIs) are among the most promising sources for future space-based gravitational-wave (GW) detectors, such as LISA. To fully leverage the scientific potential, the GW…Viktor Skoupý·Mar 13, 2026SaveLearn
Challenging the Weak Cosmic Censorship with Phantom FieldsPenrose's weak cosmic censorship conjecture asserts that spacetime singularities produced by gravitational collapse are generically hidden behind event horizons, thus preventing them from…Giovanni Caridi, Fabrizio Corelli, Paolo Pani·Mar 13, 2026SaveLearn
The Bianchi IX Attractor in Modified GravityWe consider vacuum anisotropic spatially homogeneous models in certain modified gravity theories (such as Hořava-Lifshitz, λ-R or f(R) gravity), which are expected to describe generic spacelike…Ester Beatriz, Everaldo Bonotto, Phillipo Lappicy·Mar 13, 2026SaveLearn
Kerr-Newman black hole surrounded by quintessence under quantum gravity effects and gravity's rainbowIn this paper, we investigate the quantum gravity effects on the tunneling of particles and gravity's rainbow across the event horizon of Kerr-Newman black hole (KNBH) surrounded by the…Aheibam Boycha Meitei, Irom Ablu Meitei, Telem Ibungochouba Singh et al.·Mar 13, 2026SaveLearn
Thermodynamics and null-geodesic of the Kerr-Newman black hole surrounded by quintessence and a cloud of stringIn this paper, we study the effect of the modified dispersion relation (MDR) on the thermodynamics of the Kerr-Newman black hole surrounded by quintessence and a cloud of string. The thermodynamic…Aheibam Boycha Meitei, Yenshembam Priyobarta Singh, Telem Ibungochouba Singh et al.·Mar 13, 2026SaveLearn
Rotating wormholes in five dimensions with equal angular momenta: large asymmetry regimeWe clarify the relationship between rotation and the energy condition for stationary rotating wormhole solutions of the Einstein equations coupled to a phantom field in five-dimensional spacetime…Keiya Uemichi, Yasutaka Koga, Daiki Saito et al.·Mar 13, 2026SaveLearn
Third type of spacetime with the coexistence of integrability and non-integrabilityThe integrability or non-integrability of a spacetime usually refers to whether the motion of massive or massless particles in the spacetime is integrable or not. The standard black hole spacetimes…Junjie Lu, Xin Wu·Mar 13, 2026SaveLearn
An efficient higher-order WKB code for quasinormal modes and greybody factorsThe higher-order WKB Mathematica code for computing quasinormal modes, whose accuracy was significantly enhanced through extensions to higher orders and, in particular, through the use of Padé…Roman A. Konoplya, Jerzy Matyjasek, Alexander Zhidenko·Mar 12, 2026SaveLearn
Dynamical Tidal response of compact stars -- An EFT approachWe apply the point particle EFT approach to a compact star to systematically compute dynamical tidal love numbers for various non-rotating compact objects, extending the treatment of…Gregory Jarequi, Soumodeep Mitra, Varun Vaidya·Mar 12, 2026SaveLearn
Gravitational baryogenesis beyond the spectator approximationThe standard gravitational-baryogenesis operator λ\,∇μR\,Jμ, with λ ε/M2, is usually treated as a spectator interaction that generates an effective chemical potential in a…David S. Pereira, Beatriz A. Fernandes, José Pedro Mimoso·Mar 12, 2026SaveLearn
Analytic Singular Slow-roll InflationWe study a class of minimally coupled scalar field theories which leads to analytic solutions for the Hubble rate and the scalar field, where the scalar field obeys a generalized tracking law…V. K. Oikonomou·Mar 12, 2026SaveLearn
Effective Potential Approach to the Orbital Motion of Neutral and Charged Particles Around Black HolesIn this paper we study the effective gravitational potential of Kerr, Reissner-Nordström and Kerr-Newman black holes with the relativistic corrections to evaluate the circular orbits and the…Eahsaan Nazir Najar·Mar 12, 2026SaveLearn
High post-Minkowskian gravitational waveform for hyperbolic encounters in the extreme-mass-ratio limitThe frequency-domain waveform emitted by a two-body scattering process is computed in the extreme-mass-ratio limit through the fifth post-Minkowskian (PM) order (i.e., O(G5)) and the fractional…Andrea Geralico·Mar 12, 2026SaveLearn
Gravitational scattering amplitudes from curved spaceMotivated by the study of extreme mass-ratio binary systems, recent work has explored the use of curved backgrounds in computations of classical gravitational amplitudes [arXiv:2308.15304,…Carl Jordan Eriksen·Mar 12, 2026SaveLearn
Synthetic gravitational lens image of the Sagittarius A* black hole with a thin disk modelThe images of Sagittarius A* published by the Event Horizon Telescope (ETH) Collaboration in 2022 present features that were associated with an emission ring consistent with what is expected…Ezequiel F. Boero, Osvaldo M. Moreschi·Mar 12, 2026SaveLearn
Looking for non-gaussianity in Pulsar Timing Arrays through the four point correlatorPulsar Timing Arrays have recently reported strong evidence for a stochastic gravitational wave background. In standard analyses, it is modeled through pulsar-dependent Fourier coefficients assumed…Adrien Kuntz, Clemente Smarra, Massimo Vaglio·Mar 12, 2026SaveLearn