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pro vyhledávání: '"Mark Bugden"'
Autor:
Mark Bugden
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 3, Pp 1-19 (2019)
Abstract We discuss the conditions under which non-abelian T-duality can be considered as a chain of abelian T-dualities. Motivated by these results, we propose that the topology of a non-abelian T-dual should be phrased in the language of T-folds, a
Externí odkaz:
https://doaj.org/article/4d7e913f3bea4a7fb95b787e3cbd4c90
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 8, Pp 1-19 (2017)
Abstract We study the T-dualisability criteria of Chatzistavrakidis, Deser and Jonke [3] who recently used Lie algebroid gauge theories to obtain sigma models exhibiting a “Tduality without isometry”. We point out that those T-dualisability crite
Externí odkaz:
https://doaj.org/article/afc2c68c9ee34fc8b47e6f822c76c1ca
In this note we study exceptional algebroids, focusing on their relation to type IIB superstring theory. We show that a IIB-exact exceptional algebroid (corresponding to the group $E_{n(n)}\times \mathbb{R}^+$, for $n\le 6$) locally has a standard fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3dba826305a03a5389fdc173d05bf7a
http://arxiv.org/abs/2107.00091
http://arxiv.org/abs/2107.00091
Autor:
Mark Bugden
We study the set of trapped photons outside the event horizon of Schwarzschild-Tangherlini black holes in dimension $d\geq4$. We prove that the only trapped photons are those with constant Boyer-Lindquist coordinate radius. We then identify the set o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77089acede1ffce3bdb5e42e490ca7a6
Autor:
Mark Bugden
We study the motion of bound null geodesics with fixed coordinate radius around a five-dimensional rotating black hole. These spherical photon orbits are not confined to a plane, and can exhibit interesting quasiperiodic behaviour. We provide necessa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67f815746a5175483d6ca5419cc34a63
http://arxiv.org/abs/1801.03389
http://arxiv.org/abs/1801.03389
Autor:
Mark Bugden, Claudio F Paganini
Publikováno v:
Classical & Quantum Gravity; 2/21/2019, Vol. 36 Issue 4, p1-1, 1p