# gst: images of hypothetical realities; expansion of bubbles in extra dimensions (of tiny, vibrating "string- like" entities)

<< According to string theory, all matter consists of tiny, vibrating "string-like" entities. >>

AA << proposes a new structural concept, including dark energy, for a universe that rides on an expanding bubble in an additional dimension. >>

<< The researchers also show that expanding bubbles of this kind can come into existence within the framework of string theory. It is conceivable that there are more bubbles than ours, corresponding to other universes. >>

Our universe: An expanding bubble in an extra dimension. Uppsala University. Dec 28, 2018.

https://m.phys.org/news/2018-12-universe-extra-dimension.html

Souvik Banerjee, Ulf Danielsson, et al.  Emergent de Sitter Cosmology from Decaying Anti–de Sitter Space. Phys. Rev. Lett. 121, 261301. Dec 27, 2018.

https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.121.261301