A closed universe: de Sitter cosmic gate
نویسندگان
چکیده
A new cosmological object in analogy with the concept of a wormhole general relativity is introduced. As wormholes connect two distant points through tunnel spacetime, this connects spacetime large mouth which referred to as “Cosmic Gate”. In context, identical copies regular part de Sitter are cut timelike hyperplane. Then, they glued at their boundaries (the only boundary) form complete spacetime. The stability cosmic gate against linear radial perturbation studied well. Finally, geodesics for and null particle presented.
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2022
ISSN: ['0370-2693', '1873-2445']
DOI: https://doi.org/10.1016/j.physletb.2022.137411