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pro vyhledávání: '"Gibbons, Gary"'
We construct the first four-dimensional multi-black hole solution of general relativity with a positive cosmological constant. The solution consists of two static black holes whose gravitational attraction is balanced by the cosmic expansion. These s
Externí odkaz:
http://arxiv.org/abs/2303.07361
Autor:
Carr, Bernard J., Ellis, George F. R., Gibbons, Gary W., Hartle, James B., Hertog, Thomas, Penrose, Roger, Perry, Malcolm J., Thorne, Kip S.
Publikováno v:
Biogr. Mems Fell. R. Soc. 66, 267 (2019)
Stephen Hawking's contributions to the understanding of gravity, black holes and cosmology were truly immense. They began with the singularity theorems in the 1960s followed by his discovery that black holes have an entropy and consequently a finite
Externí odkaz:
http://arxiv.org/abs/2002.03185
We consider the toroidally compactified planar AdS-Schwarzschild solution to 4-dimensional gravity with negative cosmological constant. This has a flat torus conformal boundary metric. We show that if the spatial part of the boundary metric is deform
Externí odkaz:
http://arxiv.org/abs/1906.07192
Autor:
Gibbons, Gary W., Werner, Marcus C.
Electromagnetism in spacetime can be treated in terms of an analogue linear dielectric medium. In this paper, we discuss the gravitational analogue of the linear magnetoelectric effect, which can be found in multiferroic materials. While this is know
Externí odkaz:
http://arxiv.org/abs/1903.00223
Autor:
Gibbons, Gary W., Volkov, Mikhail S.
Publikováno v:
Phys. Rev. D 96, 024053 (2017)
We show that, contrary to what is usually claimed in the literature, the zero mass limit of Kerr spacetime is not flat Minkowski space but a spacetime whose geometry is only locally flat. This limiting spacetime, as the Kerr spacetime itself, contain
Externí odkaz:
http://arxiv.org/abs/1705.07787
Autor:
Gibbons, Gary W., Ishibashi, Akihiro
Convexity and convex functions play an important role in theoretical physics. To initiate a study of the possible uses of convex functions in General Relativity, we discuss the consequences of a spacetime $(M,g_{\mu \nu})$ or an initial data set $(\S
Externí odkaz:
http://arxiv.org/abs/1702.05584
Autor:
Gibbons, Gary W., Volkov, Mikhail S.
Publikováno v:
JCAP 1705 (2017) no.05, 039
We study solutions obtained via applying dualities and complexifications to the vacuum Weyl metrics generated by massive rods and by point masses. Rescaling them and extending to complex parameter values yields axially symmetric vacuum solutions cont
Externí odkaz:
http://arxiv.org/abs/1701.05533
Akademický článek
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Autor:
Volkow, Nora D., Gordon, Joshua A., Koob, George F., Birnbaum, Linda S., Clayton, Janine A., Koroshetz, Walter J., Bianchi, Diana W., Gibbons, Gary H., Riley, William T., Pérez-Stable, Eliseo J., Croyle, Robert T.
Publikováno v:
Public Health Reports (1974-), 2020 Mar 01. 135(2), 169-172.
Externí odkaz:
https://www.jstor.org/stable/26990681