Seminár Katedry teoretickej fyziky - Peter Mészáros (29.10.2024)

v utorok 29.10.2024 o 14:00 hod. v miestnosti F2/125

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Prednášajúci: Peter Mészáros 

Názov: Schwarzschild spacetime with extra compact dimensions

Termín: 29.10.2024, 14:00 hod., miestnosť F2 125

Abstrakt:
There are two branches of 1+(3+n)-dimensional spacetimes with (1+3)-di\-men\-si\-o\-nal 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, 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. We will discuss some unusual features of the nontrivial case, based on tests through Newtonian limit, Kretschmann scalar invariant, and conserved energy defined through Landau-Lifshitz stress-energy pseudotensor. These tests indicate nonphysical properties.

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