Zobrazeno 1 - 10
of 165
pro vyhledávání: '"Asymptotically flat spacetime"'
Autor:
Behrooz Malekolkalami
Publikováno v:
Iranian Journal of Physics Research, Vol 23, Iss 2, Pp 355-366 (2023)
In this work, we study some introductory properties of the regular Gaussian black holes in pure quadratic gravity. The results show the relative advantages of this model with respect to the similar case in Einstein gravity.
Externí odkaz:
https://doaj.org/article/c26a83af15f248b4b08a8c8e68e6c912
Akademický článek
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Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 4, Pp 1-15 (2021)
European Physical Journal
European Physical Journal
We investigate the thermodynamics of Einstein-Maxwell(-Dilaton) theory for an asymptotically flat spacetime in a quasilocal frame. We firstly define a quasilocal thermodynamic potential via the Euclidean on-shell action and formulate a quasilocal Sma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf014e0a61f6ae160e1512d1f539fd80
https://doaj.org/article/39823586edb84a649d1ba99c32d473cb
https://doaj.org/article/39823586edb84a649d1ba99c32d473cb
Autor:
Ariel Edery
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 1, Pp 1-24 (2021)
Journal of High Energy Physics
Journal of High Energy Physics
In previous work, black hole vortex solutions in Einstein gravity with AdS$_3$ background were found where the scalar matter profile had a singularity at the origin $r=0$. In this paper, we find numerically static vortex solutions where the scalar an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9736abdb86c8caaf01b6b212da031351
https://doaj.org/article/e42bbbb82f2945a0aa1e0039d20043a1
https://doaj.org/article/e42bbbb82f2945a0aa1e0039d20043a1
Autor:
Po-Ning Chen
Publikováno v:
Transactions of the American Mathematical Society. 373:8611-8636
The positive mass theorem is one of the fundamental results in general relativity. It states that, assuming the dominant energy condition, the total mass of an asymptotically flat spacetime is non-negative. The Penrose inequality provides a lower bou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d24891eae0161caad0f8032d5ac3a59
https://doi.org/10.1090/tran/8158
https://doi.org/10.1090/tran/8158
Autor:
Alexander Schmeding, David Prinz
Publikováno v:
Classical and Quantum Gravity
We study the Lie group structure of asymptotic symmetry groups in General Relativity from the viewpoint of infinite-dimensional geometry. To this end, we review the geometric definition of asymptotic simplicity and emptiness due to Penrose and the co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fad394377497cfee2a58ad639cfd5442
https://hdl.handle.net/11250/2999259
https://hdl.handle.net/11250/2999259
Autor:
Laura Donnay, Romain Ruzziconi
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2021, Iss 11, Pp 1-27 (2021)
Journal of High Energy Physics, Vol 2021, Iss 11, Pp 1-27 (2021)
Starting from gravity in asymptotically flat spacetime, the BMS momentum fluxes are constructed. These are non-local expressions of the solution space living on the celestial Riemann surface. They transform in the coadjoint representation of the exte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85dc9ce6787e855d1d652a598a9eda0a
https://doi.org/10.1007/jhep11(2021)040
https://doi.org/10.1007/jhep11(2021)040
Autor:
Wen-Yuan Ai
Publikováno v:
Physical Review
We study a special two-dimensional dilaton gravity with Lagrangian $\mathcal{L}=\frac{1}{2}\sqrt{-g}(\phi R+{\lambda^2}{\rm sech}^2\phi)$ where $\lambda$ is a parameter of dimension mass. This theory describes two-dimensional spacetimes that are asym
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90cf6c64351340ba170e6245613ff91d
https://doi.org/10.1103/physrevd.104.044064
https://doi.org/10.1103/physrevd.104.044064
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2021, Iss 8, Pp 1-38 (2021)
Journal of High Energy Physics, Vol 2021, Iss 8, Pp 1-38 (2021)
We study the effect of electromagnetic interactions on the classical soft theorems on an asymptotically AdS background in 4 spacetime dimensions, in the limit of a small cosmological constant or equivalently a large AdS radius $l$. This identifies $1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e29e8968b2043a777a95e1c69ee7fec3
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Autor:
Sudipta Sarkar, Rajes Ghosh
Publikováno v:
Physical Review D. 104
We present a novel theorem regarding light rings in a stationary spacetime with an ergoregion. We prove that any stationary, axisymmetric, and asymptotically flat spacetime in 1 + 3 dimensions with an ergoregion must have at least one light ring outs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30f0aa2478c4c496d7a8106f18b88b2f
https://doi.org/10.1103/physrevd.104.044019
https://doi.org/10.1103/physrevd.104.044019