Bubble universe from flat spaces

Eduardo Guendelman; Jacov Portnoy

doi:10.1140/epjc/s10052-024-12750-5

Bubble universe from flat spaces

Eduardo Guendelman, Jacov Portnoy

Department of Physics

Research output: Contribution to journal › Article › peer-review

Abstract

We show by matching two flat spaces one in Minkowski coordinates (empty space) and the other in Minkowski coordinates after a special conformal transformation (also empty space) through a bubble with positive and constant surface tension, that the motion of the bubble is hyperbolic. If the surface tension is very big the initial size of the bubble is as small as we wish, so that we can indeed obtain an infinite universe out of empty spaces. The induced space in the bubble is de Sitter type.

Original language	English
Article number	418
Journal	European Physical Journal C
Volume	84
Issue number	4
DOIs	https://doi.org/10.1140/epjc/s10052-024-12750-5
State	Published - 1 Apr 2024

ASJC Scopus subject areas

Engineering (miscellaneous)
Physics and Astronomy (miscellaneous)

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10.1140/epjc/s10052-024-12750-5

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AB - We show by matching two flat spaces one in Minkowski coordinates (empty space) and the other in Minkowski coordinates after a special conformal transformation (also empty space) through a bubble with positive and constant surface tension, that the motion of the bubble is hyperbolic. If the surface tension is very big the initial size of the bubble is as small as we wish, so that we can indeed obtain an infinite universe out of empty spaces. The induced space in the bubble is de Sitter type.

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Bubble universe from flat spaces

Abstract

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