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Type: Journal article
Title: Poincaré recurrence theorem and the strong CP problem
Other Titles: Poincare recurrence theorem and the strong CP problem
Author: Kalloniatis, Alexander Constantine
Nedelko, Sergei N.
Citation: Physical Review D, 2006; 73(3):034006
Publisher: American Physical Society
Issue Date: 2006
ISSN: 1550-7998
School/Discipline: School of Chemistry and Physics : Physics and Mathematical Physics
Statement of
Alex C. Kalloniatis and Sergei N. Nedelko
Abstract: The existence in the physical QCD vacuum of nonzero gluon condensates, such as hg2F2i, requires dominance of gluon fields with finite mean action density. This naturally allows any real number value for the unit ‘‘topological charge’’ q characterizing the fields approximating the gluon configurations which should dominate the QCD partition function. If q is an irrational number then the critical values of the parameter for which CP is spontaneously broken are dense in R, which provides for a mechanism of resolving the strong CP problem simultaneously with a correct implementation of UA 1 symmetry. We present an explicit realization of this mechanism within a QCD motivated domain model. Some model independent arguments are given that suggest the relevance of this mechanism also to genuine QCD.
Rights: ©2006 American Physical Society
DOI: 10.1103/PhysRevD.73.034006
Appears in Collections:Physics publications

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