Singular instantons and creation of open universes
Alexander Vilenkin (Tufts University)

TL;DR
This paper critiques the use of Hawking-Turok singular instantons for creating open universes, highlighting their unacceptable physical consequences and arguing against their applicability.
Contribution
The paper demonstrates that Hawking-Turok singular instantons are physically problematic and cannot be used to model the creation of open universes.
Findings
Hawking-Turok instantons lead to unacceptable physical consequences.
Such instantons are unsuitable for describing open universe creation.
The paper provides a critical assessment of these instantons' physical viability.
Abstract
Singular instantons of the type introduced by Hawking and Turok (hep-th/9802030) lead to unacceptable physical consequences and cannot, therefore, be used to describe the creation of open universes.
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Taxonomy
TopicsCosmology and Gravitation Theories · Relativity and Gravitational Theory · Advanced Thermodynamics and Statistical Mechanics
