On the geometry of the Hawking Turok instanton

Abstract

We discuss the coordinate complexification necessary to obtain a spatially homogeneous open universe in the singular instantonic solution recently suggested by Hawking and Turok (hep-th/9802030), concluding that only the time coordinate $\sigma$ of the spatially inhomogeneous De Sitter-like Lorentzian solution and its scale factor should be rotated in order to continue into a Lorentzian open universe.

3 pages, LaTex

Cited by in corpus (1)

• Nonsingular instantons for the creation of open universes