Abstract
At high temperatures, in the presence of quarks, QCD has one stable and two metastable Z(3) vacua. We propose a scenario in which the Universe, after inflationary expansion for example at the grand unified scale, lies in one of these metastable vacua. We estimate that the metastable vacuum decayed at T∼10 TeV. The inhomogeneities caused by this phase transition are over one-tenth of the horizon radius. As a result of a large pressure difference between stable and metastable vacua their density contrast is also large.
- Received 8 October 1991
DOI:https://doi.org/10.1103/PhysRevLett.68.737
©1992 American Physical Society
