Interpenetrating subspaces as a funnel to extra space

Abstract

New solution for two interpenetrating universes is found. Higher derivative gravity acting in 6-dimensional space is the basis of the study that allows to obtain stable solution without introducing matter of any sort. Stability of the solution is maintained by a difference between asymptotic behavior at spacial infinities. For an external observer such a funnel looks similar to a spherical wormhole.

10 pages, 5 figures, accepted for publication in Phys. Lett. B, revised version

References in corpus (4)

• Disappearing cosmological constant in f(R) gravity
• Class of viable modified $f(R)$ gravities describing inflation and the onset of accelerated expansion
• Conditions for the cosmological viability of f(R) dark energy models
• Higher Dimensional Cosmology: Relations among the radii of two homogeneous spaces

Cited by in corpus (6)

• Wormholes leading to extra dimensions
• Inhomogeneous compact extra dimensions
• Classical evolution of subspaces
• Wormholes and black universes communicated with extra dimensions
• Inflationary limits on the size of compact extra space
• Gravity with Higher Derivatives in D-Dimensions