Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of BonnDE1.5k papers
- University of OxfordGB1.5k papers
- Lawrence Berkeley National LaboratoryUS1.5k papers
- Michigan State UniversityUS1.5k papers
- Stony Brook UniversityUS1.5k papers
- University of WuppertalDE1.5k papers
- The Ohio State UniversityUS1.5k papers
- Centre National de la Recherche ScientifiqueFR1.5k papers
- Stockholm UniversitySE1.4k papers
- Johannes Gutenberg University MainzDE1.4k papers
- Uppsala UniversitySE1.4k papers
- University of ManchesterGB1.4k papers
273 papers · 1 filter
A Simple Pendulum in Schwarzschild Spacetime
Andrzej Czarnecki, Andrew Czezowski
We determine the small-oscillation period of a simple pendulum in Schwarzschild spacetime. After transients decay, the displaced rope coincides with a geodesic of the induced spati…
A rotating GUP black hole: metric, shadow, and bounds on quantum parameters
Federica Fragomeno, Samantha Hergott, Saeed Rastgoo +1
Recently, for the first time, a metric of a static spherically symmetric generalized uncertainty inspired quantum black hole was derived. We apply the modified Newman-Janis algorit…
Hidden Momentum and the Absence of the Gravitational Spin Hall Effect in a Uniform Field
Andrzej Czarnecki, Ting Gao
We re-examine the recent claim that a Dirac particle freely falling in a uniform gravitational field exhibits a spin-dependent transverse deflection (gravitational spin Hall effect…
Observational Constraints on Chaplygin Gas Models in Non-Minimally Coupled Power Law Gravity with Quasars
Nakul Aggarwal, Ali Pourmand, Fatimah Shojai +1
In the framework of gravity, where gravity emerges from non-metricity , we explore the cosmological implications of its non-minimal coupling to matter. Inspired by the re…
Canonical Electrodynamics in Ashtekar-Barbero variables
Federica Fragomeno, Saeed Rastgoo
We present the full Hamiltonian analysis of electrodynamics, including fermions, photons, and their interaction, on a general curved spacetime in Ashtekar-Barbero variables. Only t…
Test of Quantum Gravity in Optical Magnetometers
Mitja Fridman, James Maldaner, Gil Porat +1
In this work, quantum gravity effects, which can potentially be measured in magnetometers through the Larmor frequency of atoms in an external magnetic field, are estimated. It is…
Dynamical model for black hole to white hole transitions
Samantha Hergott, Viqar Husain, Saeed Rastgoo
We present an asymptotically flat spherically symmetric non-singular metric that describes gravitational collapse and matter bounce with transient black hole and white hole regions…
The unification of gravity and the spin-1 field
Gary Nash
Unifying the massive spin-1 field with gravity requires the implementation of a regular vector field that satisfies the spin-1 Proca equation and is a fundamental part of the space…
Spinoptics in the Kerr Spacetime: Polarized Wave Scattering
Valeri P. Frolov, Alex Koek
We study propagation of high-frequency electromagnetic and gravitational waves in the gravitational field of a rotating black hole. Due to the interaction of the spin of the field…
Regular black holes inspired by quasi-topological gravity
Valeri P. Frolov, Alex Koek, Jose Pinedo Soto +1
Recently it was demonstrated that by adding to the Einstein-Hilbert action a series in powers of the curvature invariants with specially chosen coefficients one can obtain a theory…
Motion of a weakly charged rotating black hole in a homogeneous electromagnetic field
Valeri P. Frolov, Alex Koek
In this paper we consider a rotating black hole with electric and magnetic monopole charges that moves in a static homogeneous electromagnetic field. We assume that both the charge…
A generalized uncertainty-inspired quantum black hole
Federica Fragomeno, Douglas M. Gingrich, Samantha Hergott +2
We derive the full spacetime metric of a generalized uncertainty-inspired quantum black hole. We examine a previous model of the interior in this approach and show that extending i…
Quasinormal modes of a nonsingular spherically symmetric black hole effective model with holonomy corrections
Douglas M. Gingrich
We calculate the quasinormal modes of a nonsingular spherically symmetric black hole effective model with holonomy corrections. The model is based on quantum corrections inspired b…
Motion of Rotating Black Holes in Homogeneous Scalar Fields: A General Case
Valeri P. Frolov, Alex Koek
In this paper we consider the motion of a rotating black hole through a static, homogeneous, massless scalar field. In the general case, a constant vector of the field gradient can…
Post-Newtonian effects in compact binaries with a dark matter spike: A Lagrangian approach
Diego Montalvo, Adam Smith-Orlik, Saeed Rastgoo +3
We apply the Lagrangian method to study the post-Newtonian evolution of a compact binary system with environmental effects, including a dark matter spike, and obtain the resulting…
Black hole interior quantization: a minimal uncertainty approach
Pasquale Bosso, Octavio Obregón, Saeed Rastgoo +1
In a previous work we studied the interior of the Schwarzschild black hole implementing an effective minimal length, by applying a modification to the Poisson brackets of the theor…
Nonlocal modification of the Kerr metric
Valeri P. Frolov, Jose Pinedo Soto
In the present paper, we discuss a nonlocal modification of the Kerr metric. Our starting point is the Kerr-Schild form of the Kerr metric . Using Newman's a…
Quasinormal modes of loop quantum black holes near the Planck scale
Douglas M. Gingrich
We compare four loop quantum gravity inspired black hole metrics near the Planck scale. Spin 0, 1/2, 1, and 2 field perturbations on these backgrounds are studied. The axial gravit…
Charged Particle Motion Near a Magnetized Black Hole: A Near-Horizon Approximation
Noah P. Baker, Valeri P. Frolov
In this paper, the orbits of a charged particle near the event horizon of a magnetized black hole are investigated. For a static black hole of mass immersed in a homogeneous ma…
Quantum atmosphere effective radii for different spin fields from quantum gravity inspired black holes
Douglas M. Gingrich
Quantum atmosphere effective radii for the emission of spin-0, -1/2, -1, and -2 massless fields from Schwarzschild, Tangherlini, non-commutative geometry inspired, and polymeric bl…
Modified General Relativity and dark matter
Gary Nash
Modified General Relativity (MGR) is the natural extension of General Relativity (GR). MGR explicitly uses the smooth regular line element vector field , which e…
Greybody factors for higher-dimensional non-commutative geometry inspired black holes
Zachary Cox, Douglas M. Gingrich
Greybody factors are computed for massless fields of spin 0, 1/2, 1, and 2 emitted from higher-dimensional non-commutative geometry inspired black holes. Short-range potentials are…
Can Two Ultrarelativistic Objects Lose Almost All Their Energy to Gravitational Radiation?
Don N. Page
In 2007 Pretorius and Khurana did "speculate that at threshold [at a critical impact parameter], all of the kinetic energy of the system [two ultrarelativistic black holes] is conv…
What do gravitational wave detectors say about polymer quantum effects?
Angel Garcia-Chung, Matthew F. Carney, James B. Mertens +3
We compute the expected response of detector arms of gravitational wave observatories to polymerized gravitational waves. The mathematical and theoretical features of these waves w…