Vacuum behavior in quantum chromodynamics
- 15 February 1980
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 21 (4) , 1095-1099
- https://doi.org/10.1103/physrevd.21.1095
Abstract
The behavior of the vacuum in quantum chromodynamics is investigated by calculating quantum fluctuations of the gluon field in general constant background fields. One-loop contributions to the effective action result in a positive-definite imaginary part, indicating instability of the vacuum for all values of background electric- and magnetic-type field strengths.Keywords
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