Speaker
Peter Mészáros
(Department of Theoretical Physics, Comenius University, Bratislava, Slovakia)
Description
There are two branches of 1+(3+n) dimensional spacetimes with (1+3)-dimensional part corresponding to spherically symmetric spacetime and with Euclidean symmetry in n extra dimensions which satisfy vacuum Einstein field equations. One branch is a trivial extension of the Schwarzschild spacetime around a gravitating body, while the second branch is nontrivial. The extra dimensions may be compactified, so that, in principle, these solutions may be relevant in our (1+3)-dimensional Universe, perhaps providing a new dark matter candidate. We will discuss some unusual features of the nontrivial case, based on the Newtonian limit, Kretschmann scalar invariant, and conserved energy defined through the Landau-Lifshitz stress-energy pseudotensor.
Author
Peter Mészáros
(Department of Theoretical Physics, Comenius University, Bratislava, Slovakia)
