Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Perimeter InstituteCA2.3k papers
- Centre National de la Recherche ScientifiqueFR605 papers
- California Institute of TechnologyUS440 papers
- University College LondonGB409 papers
- University of TorontoCA391 papers
- Durham UniversityGB376 papers
- Leiden UniversityNL354 papers
- Center for Astrophysics Harvard & SmithsonianUS326 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR326 papers
- Massachusetts Institute of TechnologyUS325 papers
- Max Planck Institute for Extraterrestrial PhysicsDE305 papers
- Sorbonne UniversitéFR305 papers
553 papers · 1 filter
Analytic thin disks and rings in a class of nonasymptotically flat static spacetimes
Shokoufe Faraji, Ruijing Tang
External matter distributions can substantially reshape the strong field environment of compact objects, yet this effect is usually neglected in idealized isolated models. In this…
Accelerating Numerical Relativity Simulations with New Multistep Fourth-Order Runge-Kutta Methods
Lucas Timotheo Sanches, Steven Robert Brandt, Jay Kalinani +2
Many HPC applications that solve differential equations rely on the Runge-Kutta family of methods for time integration. Among these methods, the fourth-order accurate RK4 scheme is…
Spectral Analysis of Quasinormal Modes of Planck Stars
Davide Batic, Denys Dutykh, Fabio Scardigli
We investigate the quasinormal modes (QNMs) of Planck stars within the framework of scale-dependent gravity (SDG). In our setup, the running parameter is fixed to a negative va…
Graviton Condensate Stars and Its Gravitational Echoes
Muhammad Fitrah Alfian Rangga Sakti
We construct the exact stellar configurations that contain an ordinary perfect-fluid matter that interacts minimally with a condensate of gravitons with distinct pressure condition…
Null integrability and photon phenomenology in the accelerated Schwarzschild black hole
Shokoufe Faraji, Eva Hackmann
Uniformly accelerated black holes provide a controlled setting to isolate how translatory acceleration and conical defects modify photon dynamics and observable optics. We analyse…
Black Hole Chemistry: the first 15 years
Robert B. Mann
The introduction of thermodynamics into gravitational physics began 5 decades ago with the discovery that black holes behave like thermodynamic systems once semiclassical quantum e…
Self-regularized entropy: What does black hole entropy predict for tests of Kerr no-hair theorem?
Shokoufe Faraji, Niayesh Afshordi
We compute the canonical, or brick-wall, entropy of a massless scalar field in a quantum black hole model whose strong field exterior is described phenomenologically by the static…
Sourced Carrollian Fluids Dual to Black Hole Horizons
Sercan Hüsnügil, Luis Lehner
The (degenerate) geometry of event horizons is linked to Carrollian fluids. We investigate the behavior of event horizons via a perturbative coupling to a massless scalar field, ma…
Quantum aspects of spacetime: A quantum optics view of acceleration radiation and black holes
C. R. Ordonez, A. Chakraborty, H. E. Camblong +2
For the centennial of quantum mechanics, we offer an overview of the central role played by quantum information and thermalization in problems involving fundamental properties of s…
Thermal Fisher information for a rotating BTZ black hole
Everett A. Patterson, Robert B. Mann
Relativistic quantum metrology provides a framework within which we can quantify the quality of measurement and estimation procedures while accounting for both quantum and relativi…
Quenched entanglement harvesting
Adrian Lopez-Raven, Robert B. Mann, Jorma Louko
Ultracold fermionic atoms in an optical lattice, with a sudden position-dependent change (a quench) in the effective dispersion relation, have been proposed by Rodríguez-Laguna et…
The impact of compact object deformation on thin accretion disk properties
Shokoufe Faraji
We investigate the standard relativistic geometrically thin and optically thick accretion disk in the background of a deformed compact object. The main purpose of this work is to d…
Numerical evolution of Maxwell's equations for wavefronts propagating through a spherical gravitational potential
Annamalai P. Shanmugaraj, Erik Schnetter, Sofie Marie Koksbang
We present a scheme for numerically solving Maxwell's equations in a weakly perturbed spacetime without introducing the usual geometric optics approximation. Using this scheme, we…
One-Dimensional Relativistic Self-Gravitating Systems
Robert B. Mann
One of the oldest problems in physics is that of calculating the motion of particles under a specified mutual force: the -body problem. Much is known about this problem if t…
Thermodynamic supercriticality and complex phase diagram for the AdS black hole
Zhen-Ming Xu, Robert B. Mann
In this study, we extend the application of the Lee-Yang phase transition theorem to the realm of AdS black hole thermodynamics, thereby deriving a comprehensive complex phase diag…
Complex Riemannian Spacetime, Removal of Black Hole Singularities And Black Hole Paradoxes
J. W. Moffat
An approach is presented to resolve key paradoxes in black hole physics through the application of complex Riemannian spacetime. We extend the Schwarzschild metric into the complex…
How Much NEC Breaking Can the Universe Endure?
Elly Moghtaderi, Brayden R. Hull, Jerome Quintin +1
Quantum fields can notoriously violate the null energy condition (NEC). In a cosmological context, NEC violation can lead to, e.g., dark energy at late times with an equation-of-st…
Complex Riemannian spacetime and singularity-free black holes and cosmology
John W. Moffat
An approach is presented to address singularities in general relativity using a complex Riemannian spacetime extension. We demonstrate how this method can be applied to both black…
Exploring Born-Infeld f(T) teleparallel gravity through accretion disk dynamics
Ruijing Tang, Shokoufe Faraji, Niayesh Afshordi
Teleparallel Born-Infeld gravity (TBI) is a modified theory of gravity that aims to maintain second order field equations, leading to alternative scenarios for strong gravity and c…
Violations of the null convergence condition in kinematical transitions between singular and regular black holes, horizonless compact objects, and bounces
Johanna Borissova, Stefano Liberati, Matt Visser
How do regular black holes evade the Penrose singularity theorem? Various models of stationary regular black holes globally satisfy the null convergence condition (NCC). At first g…
Thermodynamics of charged and accelerating black holes
Tomáš Hale, David Kubizňák, Jana Menšíková +2
We reconsider various C-metric spacetimes describing charged and (slowly) accelerating AdS black holes in different theories of (non-linear) electrodynamics and revisit their therm…
Neutron stars in 4D Einstein-Gauss-Bonnet gravity
Alejandro Saavedra, Octavio Fierro, Michael Gammon +2
Since the derivation of a well-defined limit for 4D Einstein-Gauss-Bonnet (4DEGB) gravity coupled to a scalar field, there has been considerable interest in testing it as a…
Vacuum polarization effects in the background of a deformed compact object and implications for photon velocity
Daniel Amaro, Shokoufe Faraji
This paper studies the impact of vacuum polarization on light propagation in the background of a distorted, deformed compact object. Focusing on a spacetime containing two quadrupo…
Zero Mass limit of Kerr-MOG Black Hole Equals Wormhole
Parthapratim Pradhan, John W. Moffat
It has been argued in existing literature that the zero mass limit of Kerr spacetime corresponds to either flat Minkowski spacetime or a wormhole exhibiting a locally flat geometry…