60 citations · 170 across the 14 of their papers we have counts for
14 papers
Black hole singularity is a surface not a point
Andrew J. S. Hamilton, Tyler McMaken
It is widely repeated in the popular literature and elsewhere that the singularity at the center of a black hole is a point. It is not true. Two observers who free-fall into a sphe…
Towards a Non-singular Paradigm of Black Hole Physics
Raúl Carballo-Rubio, Francesco Di Filippo, Stefano Liberati +18
The study of regular black holes and black hole mimickers as alternatives to standard black holes has recently gained significant attention, driven both by the need to extend gener…
Hawking radiation inside a charged, cosmological black hole
Devayani Ravuri, Tyler McMaken
We study the effective temperature, as a rate of gravitational redshift, of the Hawking modes perceived by a radially free falling observer at an arbitrary location in a Reissner-N…
Backreaction from quantum fluxes at the Kerr inner horizon
Tyler McMaken
Black holes modeled by the Kerr metric are not semiclassically self-consistent at or below the inner horizon. The renormalized stress-energy tensor (RSET) of a scalar quantum field…
Hawking radiation inside a rotating black hole
Tyler McMaken, Andrew J. S. Hamilton
In semiclassical gravity, the vacuum expectation value of the particle number operator for a quantum field gives rise to the perception of thermal radiati…
Existence of Time-like Geodesics in Asymptotically Flat Spacetimes: A Generalized Topological Criterion
Krish Jhurani, Tyler McMaken
This paper examines the issue of the existence and nature of time-like geodesics in asymptotically flat spacetimes and proposes a novel generalized topological criterion for the ex…
Unification of the four forces in the Spin(11,1) geometric algebra
Andrew J. S. Hamilton, Tyler McMaken
SO(10), or equivalently its covering group Spin(10), is a well-known promising grand unified group that contains the standard-model group. The spinors of the group Spin() of rot…
Pancakification and negative Hawking temperatures
Tyler McMaken
Vacuum models of charged or spinning black holes possess two horizons, the inner of which has the oft-overlooked property that gravitational tidal forces initially spaghettifying a…
Semiclassical instability of inner-extremal regular black holes
Tyler McMaken
The construction of black hole spacetimes that are regular (singularity-free) is plagued by the "mass inflation" instability, a classical perturbation instability induced by the su…
Hawking radiation inside a charged black hole
Tyler McMaken, Andrew J. S. Hamilton
Here we analyze the Hawking radiation detected by an inertial observer in an arbitrary position in a Reissner-Nordström spacetime, with special emphasis on the asymptotic behavior…
Wave equations in conformally separable, accreting, rotating black holes
Andrew J. S. Hamilton, Tyler McMaken
The Teukolsky wave equations governing fields of spin 0, , 1, , and 2 are generalized to the case of conformally separable solutions for accreting, rota…
Renormalization of at the inner horizon of rotating, accreting black holes
Tyler McMaken, Andrew J. S. Hamilton
Classically, the inner horizon of a perturbed, rotating black hole undergoes an instability known as mass inflation, wherein the spacetime curvature diverges as a result of hyper-r…
Notes on primordial black hole origin for thermal gamma-ray bursts
Tyler McMaken
Recently, an alleged plausible astrophysical scenario was proposed for the production of observed thermal gamma-ray bursts, via Hawking radiation emitted from a primordial black ho…
Geometry near the inner horizon of a rotating, accreting black hole
Tyler McMaken, Andrew J. S. Hamilton
Here we present a novel classical model to describe the near-inner horizon geometry of a rotating, accreting black hole. The model assumes spacetime is homogeneous and is sourced b…