Bubble Universe from Flat Spaces

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.

arXiv commentfinal version, published in European Physics Journal C, 10 pages

References in corpus (5)

• Universes out of almost empty space
• Riemann-Cartan gravity with dynamical signature
• Notes on Euclidean de Sitter space
• Brane world creation from flat or almost flat space in dynamical tension string theories
• Relieving String Tension By Making Baby Universes in a Dynamical String Tension Braneworld Model