Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Papazoglou, Antonios"'
Publikováno v:
Phys.Rev.D84:025016,2011
We consider the scenario where in a five-dimensional theory, the extra spatial dimension has different scaling than the other four dimensions. We find background maximally symmetric solutions, when the bulk is filled with a cosmological constant and
Externí odkaz:
http://arxiv.org/abs/1102.5725
Publikováno v:
Phys.Rev.D81:084046,2010
We systematically study spherically symmetric static spacetimes filled with a fluid in the Horava-Lifshitz theory of gravity with the projectability condition, but without the detailed balance. We establish that when the spacetime is spatially Ricci
Externí odkaz:
http://arxiv.org/abs/0912.0011
Publikováno v:
Phys.Lett.B685:197-200,2010
An extension of Horava-Lifshitz gravity was recently proposed in order to address the pathological behavior of the scalar mode all previous versions of the theory exhibit. We show that even in this new extension the strong coupling persists, casting
Externí odkaz:
http://arxiv.org/abs/0911.1299
Publikováno v:
JCAP 1001:022,2010
We study axially symmetric codimension-2 cosmology for a distributional braneworld fueled by a localised 4D perfect fluid, in a 6D Lovelock theory. We argue that only the matching conditions (dubbed topological) where the extrinsic curvature on the b
Externí odkaz:
http://arxiv.org/abs/0907.1640
Publikováno v:
J.Phys.Conf.Ser.189:012007,2009
We consider maximally symmetric 3-branes embedded in a six-dimensional bulk spacetime with Lovelock dynamics. We study the properties of the solutions with respect to their induced curvature, their vacuum energy and their effective compactness in the
Externí odkaz:
http://arxiv.org/abs/0902.2174
Autor:
Lee, Hyun Min, Papazoglou, Antonios
Publikováno v:
Phys.Rev.D80:043506,2009
We consider a probe codimension-2 brane inflation scenario in a warped six-dimensional flux compactification. Our background model is Salam-Sezgin gauged supergravity with codimension-2 brane sources, which preserve N=1 supersymmetry. The model has a
Externí odkaz:
http://arxiv.org/abs/0901.4962
Publikováno v:
JHEP 0807:062,2008
We consider four-dimensional de Sitter, flat and anti de Sitter branes embedded in a six-dimensional bulk spacetime whose dynamics is dictated by Lovelock theory. We find, applying a generalised version of Birkhoff's theorem, that all possible maxima
Externí odkaz:
http://arxiv.org/abs/0804.2121
Autor:
Lee, Hyun Min, Papazoglou, Antonios
Publikováno v:
JHEP 0801:008,2008
We consider the six-dimensional Salam-Sezgin supergravity in the presence of codimension-2 branes. In the case that the branes carry only tension, we provide a way to supersymmetrise them by adding appropriate localised Fayet-Iliopoulos terms and loc
Externí odkaz:
http://arxiv.org/abs/0710.4319
Publikováno v:
Nucl.Phys.B797:520-536,2008
We consider a six-dimensional Einstein-Maxwell system compactified in an axisymmetric two-dimensional space with one capped regularized conical brane of codimension one. We study the cosmological evolution which is induced on the regularized brane as
Externí odkaz:
http://arxiv.org/abs/0707.1396