540 citations · 2.4k across the 44 of their papers we have counts for
3 papers · 1 filter
Radially stabilized inflating cosmic strings
Florian Niedermann, Robert Schneider
In General Relativity, cosmic strings are well known to produce a static, locally flat spacetime with a wedge removed. If the tension exceeds a critical value, the deficit angle be…
Cosmology on a cosmic ring
Florian Niedermann, Robert Schneider
We derive the modified Friedmann equations for a generalization of the Dvali-Gabadadze-Porrati (DGP) model in which the brane has one additional compact dimension. The main new fea…
The Universe as a Cosmic String
Florian Niedermann, Robert Schneider, Stefan Hofmann +1
The cosmology of brane induced gravity in six infinite dimensions is investigated. It is shown that a brane with Friedmann-Robertson-Walker symmetries necessarily acts as a source…