Zobrazeno 1 - 10
of 60 295
pro vyhledávání: '"A Komar"'
Autor:
Ballesteros, Romina, Ortin, Tomas
The standard Komar charge is a $(d-2)$-form that can be defined in spacetimes admitting a Killing vector and which is closed when the vacuum Einstein equations are satisfied. Its integral at spatial infinity (the Komar integral) gives the conserved c
Externí odkaz:
http://arxiv.org/abs/2409.08268
Autor:
Ortín, Tomás, Zatti, Matteo
We propose a simple algorithm to compute the generalized Komar charge of any exactly gauge- and diffeomorphism-invariant theory.
Comment: 6 pages
Comment: 6 pages
Externí odkaz:
http://arxiv.org/abs/2411.10420
The supersymmetry properties of Killing vectors and spinors in supergravity theory can be clarified by relating them to Killing supervectors in the supergravity superspace. In the superspace approach it is manifest that supersymmetry 'mixes' a Killin
Externí odkaz:
http://arxiv.org/abs/2411.01020
Autor:
Jerzy LUTY
Publikováno v:
Sztuka i Dokumentacja, Vol 30, Pp 37-44 (2024)
Externí odkaz:
https://doaj.org/article/0eea47a2b2244903b9589fe3740919f8
Autor:
Racskó, Bence, Gergely, László Á.
We revisit the interpretation of the cylindrically symmetric, static vacuum Levi-Civita metric, known in either Weyl, Einstein-Rosen, or Kasner-like coordinates. Despite the infinite axis source, we derive its Komar mass density through a compactific
Externí odkaz:
http://arxiv.org/abs/2210.01152
We construct the Komar integral for axion-dilaton gravity using Wald's formalism and momentum maps and we use it to derive a Smarr relation for stationary axion-dilaton black holes. While the Wald-Noether 2-form charge is not invariant under SL(2,R)
Externí odkaz:
http://arxiv.org/abs/2106.07495
Autor:
Jerzy LUTY
Publikováno v:
Sztuka i Dokumentacja, Vol 30, Pp 45-45 (2024)
Externí odkaz:
https://doaj.org/article/dc6c7caec3bd4f55849c288a0213537c
Autor:
Ortín, T.
We construct Komar-type integrals for theories of gravity of higher order in the Riemann curvature coupled to simple kinds of matter (scalar and vector fields) and we use them to compute Smarr formulae for black-hole solutions in those theories. The
Externí odkaz:
http://arxiv.org/abs/2104.10717
Autor:
Kol, Uri
The dual Komar mass generalizes the concept of the NUT parameter and is akin to the magnetic charge in electrodynamics. In asymptotically flat spacetimes it coincides with the dual supertranslation charge. The dual mass vanishes identically on Rieman
Externí odkaz:
http://arxiv.org/abs/2010.07887
Publikováno v:
Phys. Scr. 96 (2021) 125207
The purpose of this paper is to enhance the conventional Komar integral to asymptotically anti-de Sitter (AdS) black holes. In order to do so, we first obtain a potential that is the linear combination of the usual Komar potential with two third-orde
Externí odkaz:
http://arxiv.org/abs/2008.06733