Solution of the strongCPproblem in baby-universe theory
- 27 March 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 62 (13), 1429-1432
- https://doi.org/10.1103/physrevlett.62.1429
Abstract
The strong CP problem is solved by use of quantum gravity. It is argued that the coherent-state parameters describing the effect of wormholes (baby universes) adjust themselves so as to make the strong interactions CP invariant. There remains though a small CP breaking so that θ¯ is not exactly zero. The main prediction is that we do not need the axion proposed by Peccei and Quinn.
Keywords
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