Zobrazeno 1 - 10
of 224
pro vyhledávání: '"Hamilton, A. J. S."'
Autor:
McMaken, Tyler, Hamilton, Andrew J. S.
Publikováno v:
Phys. Rev. D 109, 065023 (2024)
In semiclassical gravity, the vacuum expectation value ${\langle\hat{N}\rangle}$ of the particle number operator for a quantum field gives rise to the perception of thermal radiation in the vicinity of a black hole. This Hawking effect has been exami
Externí odkaz:
http://arxiv.org/abs/2401.03098
Autor:
Hamilton, Andrew J. S.
The spinors of the group Spin($N$) of rotations in $N$ spacetime dimensions are indexed by a bitcode with [$N$/2] bits. A well-known promising grand unified group that contains the standard-model group is Spin(10). Fermions in the standard model are
Externí odkaz:
http://arxiv.org/abs/2308.12293
Autor:
Hamilton, Andrew J. S., McMaken, Tyler
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($N$) of rotations in $N$ spacetime dimensions are indexed by a bitcode with $[N/2
Externí odkaz:
http://arxiv.org/abs/2307.01243
Autor:
McMaken, Tyler, Hamilton, Andrew J. S.
Publikováno v:
Phys. Rev. D 107, 085010 (2023)
Here we analyze the Hawking radiation detected by an inertial observer in an arbitrary position in a Reissner-Nordstr\"om spacetime, with special emphasis on the asymptotic behavior of the Hawking spectrum as an observer approaches the inner or outer
Externí odkaz:
http://arxiv.org/abs/2301.12319
Autor:
Hamilton, Andrew J. S.
Publikováno v:
Adv. Appl. Clifford Algebras (2023) 33:12
Spinors are central to physics: all matter (fermions) is made of spinors, and all forces arise from symmetries of spinors. It is common to consider the geometric (Clifford) algebra as the fundamental edifice from which spinors emerge. This paper advo
Externí odkaz:
http://arxiv.org/abs/2212.11998
Autor:
Hamilton, Andrew J. S., McMaken, Tyler
Publikováno v:
Phys. Rev. D 106, 124031 (2022)
The Teukolsky wave equations governing fields of spin 0, $\tfrac{1}{2}$, 1, $\tfrac{3}{2}$, and 2 are generalized to the case of conformally separable solutions for accreting, rotating black holes.
Comment: v1: 25 pages. v2: minor updates to agr
Comment: v1: 25 pages. v2: minor updates to agr
Externí odkaz:
http://arxiv.org/abs/2209.14752
Autor:
McMaken, Tyler, Hamilton, Andrew J. S.
Publikováno v:
Phys. Rev. D 105, 125020 (2022)
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-relativistic crossing streams of ingoing and outgoing radiation. The ge
Externí odkaz:
http://arxiv.org/abs/2204.03224
Autor:
Hamilton, Andrew J. S.
Publikováno v:
"Advances in Computer Graphics", 38th Computer Graphics International Conference CGI 2021, Proceedings, eds. N. Magnenat-Thalmann, V. Interrante, D. Thalmann, G. Papagiannakis, B. Sheng, J. Kim, M. Gavrilova, pages 705-717
This paper presents a pedagogical introduction to the issue of how to implement Lorentz transformations in relativistic visualization. The most efficient approach is to use the even geometric algebra in 3+1 spacetime dimensions, or equivalently compl
Externí odkaz:
http://arxiv.org/abs/2111.09307
Autor:
McMaken, Tyler, Hamilton, Andrew J. S.
Publikováno v:
Phys. Rev. D 103, 084014 (2021)
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 by radial streams of a collisionless, null fluid, and it predicts that
Externí odkaz:
http://arxiv.org/abs/2102.10402
Autor:
Hamilton, Andrew J. S.
The singularity of a spherical (Schwarzschild) black hole is a surface, not a point. A freely-falling, non-rotating observer sees Hawking radiation with energy density diverging with radius as $\rho \propto r^{-6}$ near the Schwarzschild singular sur
Externí odkaz:
http://arxiv.org/abs/1907.05292