17-21 September 2019
Yerevan, Armenia
Etc/GMT+4 timezone

Potentially observable cylindrical wormholes without exotic matter in general relativity

17 Sep 2019, 12:30
35m
Yerevan, Armenia

Yerevan, Armenia

Department of Physics, Alex Manoogian str. 1, Yerevan, Armenia

Speaker

Prof. Kirill Bronnikov (VNIIMS, Moscow)

Description

All known solutions in GR describing rotating cylindrical wormholes lack asymptotic flatness in the radial directions and thus cannot describe wormhole entrances as local objects in our Universe. To overcome this difficulty, wormhole solutions are joined to flat asymptotic regions at some cylindrical surfaces on both sides of the throat. The whole configuration thus consists of three regions, the internal one containing a wormhole throat, and two flat external ones. It remains to find such solutions where the matter content of the internal region and both junction surfaces respect the weak energy condition. Two examples of such configurations have been found, in one of which the internal matter is represented by a stiff perfect fluid and another one with a special kind of anisotropic fluid. In both examples, the resulting configurations do not contain closed timelike curves.

Primary author

Prof. Kirill Bronnikov (VNIIMS, Moscow)

Presentation Materials