Christos Charmousis and Antonios Papazoglou 2009 J. Phys.: Conf. Ser. 189 012007 doi:10.1088/1742-6596/189/1/012007
Christos Charmousis1,2 and Antonios Papazoglou3
Show affiliationsWe 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 extra dimensions. Some simple solutions are shown to give rise to self-accelerating braneworlds, whereas several others solutions have self-tuning properties. For the case of geometric self-acceleration we argue that the cross-over scale in between four-dimensional and higher-dimensional gravity and the scale of late-time geometric acceleration, fixed by the present horizon size, are related via the conical deficit angle of the six-dimensional bulk solution, which is a free parameter.
11.25.Mj Compactification and four-dimensional models
04.50.-h Higher-dimensional gravity and other theories of gravity
11.27.+d Extended classical solutions; cosmic strings, domain walls, texture
Issue 1 (2009)
Christos Charmousis and Antonios Papazoglou 2009 J. Phys.: Conf. Ser. 189 012007
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