Zobrazeno 1 - 10
of 51
pro vyhledávání: '"O'Loughlin, Martin"'
Publikováno v:
Phys. Rev. D 99, 024031 (2019)
In this paper we introduce a new approach to the study of the effects that an impulsive wave, containing a mixture of material sources and gravitational waves, has on a geodesic congruence that traverses it. We find that the effect of the wave on the
Externí odkaz:
http://arxiv.org/abs/1808.04886
Autor:
Blau, Matthias, O'Loughlin, Martin
We address the question of the uniqueness of the Schwarzschild black hole by considering the following question: How many meaningful solutions of the Einstein equations exist that agree with the Schwarzschild solution (with a fixed mass m) everywhere
Externí odkaz:
http://arxiv.org/abs/1604.01181
Autor:
Blau, Matthias, O'Loughlin, Martin
We revisit the theory of null shells in general relativity, with a particular emphasis on null shells placed at horizons of black holes. We study in detail the considerable freedom that is available in the case that one solders two metrics together a
Externí odkaz:
http://arxiv.org/abs/1512.02858
Autor:
Nafooshe, Saeede, O'Loughlin, Martin
Publikováno v:
Phys. Rev. D 94, 044035 (2016)
We discuss the near singularity region of the linear mass Vaidya metric. In particular we investi- gate the structure in the numerical solutions for the scattering of scalar and electromagnetic metric perturbations from the singularity. In addition t
Externí odkaz:
http://arxiv.org/abs/1510.06560
Autor:
O'Loughlin, Martin
We discuss the near singularity region of the linear mass Vaidya metric for massless particles with non-zero angular momentum. In particular we look at massless geodesics with non-zero angular momentum near the vanishing point of a special subclass o
Externí odkaz:
http://arxiv.org/abs/1312.4702
Publikováno v:
Proceedings of the 4th Conference on Time and Matter - TAM 2013, pp 175 - 181, UNG press (ISBN 978-961-6311-79-3)
It has been conjectured that Micro Black Holes (MBH) may be formed in the presence of large extra dimensions. These MBHs have very small mass and they decay almost instantaneously. Taking into consideration quantum effects, they should Hawking radiat
Externí odkaz:
http://arxiv.org/abs/1312.4407
We analyse two issues that arise in the context of (matrix) string theories in plane wave backgrounds, namely (1) the use of Brinkmann- versus Rosen-variables in the quantum theory for general plane waves (which we settle conclusively in favour of Br
Externí odkaz:
http://arxiv.org/abs/1112.3182
Autor:
O'Loughlin, Martin, Seri, Lorenzo
Publikováno v:
JHEP 1007:036,2010
We study at the classical and quantum mechanical level the time-dependent Yang-Mills theory that one obtains via the generalisation of discrete light-cone quantisation to singular homogeneous plane waves. The non-Abelian nature of this theory is know
Externí odkaz:
http://arxiv.org/abs/1003.0620
Autor:
Blau, Matthias, O'Loughlin, Martin
Publikováno v:
JHEP 0809:097,2008
We study the generalisations of the Craps-Sethi-Verlinde matrix big bang model to curved, in particular plane wave, space-times, beginning with a careful discussion of the DLCQ procedure. Singular homogeneous plane waves are ideal toy-models of reali
Externí odkaz:
http://arxiv.org/abs/0806.3255
Autor:
Blau, Matthias, O'Loughlin, Martin
Publikováno v:
JHEP 0809:112,2008
We propose a natural generalisation of the BLG multiple M2-brane action to membranes in curved plane wave backgrounds, and verify in two different ways that the action correctly captures the non-trivial space-time geometry. We show that the M2 to D2
Externí odkaz:
http://arxiv.org/abs/0806.3253