Big bang as a topological quantum phase transition

F. R. Klinkhamer, G. E. Volovik

Research output: Contribution to journalArticleScientificpeer-review

7 Citations (Scopus)
45 Downloads (Pure)


It has been argued that a particular type of quantum-vacuum variable q can provide a solution to the main cosmological constant problem and possibly also give a cold-dark-matter component. We now show that the same q field may suggest a new interpretation of the big bang, namely as a quantum phase transition between topologically inequivalent vacua. These two vacua are characterized by the equilibrium values q=±q0, and there is a kink-type solution q(t) interpolating between q=-q0 for t→-∞ and q=+q0 for t→∞, with conformal symmetry for q=0 at t=0.

Original languageEnglish
Article number084066
Pages (from-to)1-12
Number of pages12
JournalPhysical Review D
Issue number8
Publication statusPublished - 15 Apr 2022
MoE publication typeA1 Journal article-refereed


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