Search for {open_quote}{open_quote}polarized{close_quote}{close_quote} instantons in the vacuum
- School of Physics, University of New South Wales, Sydney, 2052 (Australia)
The new phase of a gauge theory in which the instantons are {open_quote}{open_quote}polarized,{close_quote}{close_quote} i.e., have the preferred orientation, is discussed. A class of gauge theories with the specific condensates of the scalar fields is considered. In these models there exists an interaction between instantons resulting from one-fermion loop corrections. The interaction makes the identical orientation of instantons the most probable, permitting one to expect the system to undergo a phase transition into the state with polarized instantons. The existence of this phase is confirmed in the mean-field approximation in which there is a first-order phase transition separating the {open_quote}{open_quote}polarized phase{close_quote}{close_quote} from the usual nonpolarized one. The considered phase can be important for the description of gravity in the framework of the gauge field theory. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 284818
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 12 Vol. 53; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Polarization independence of microwave {open_quote}{open_quote}ionization{close_quote}{close_quote} thresholds of excited hydrogen atoms near the principal resonance
{open_quote}{open_quote}Standing{close_quote}{close_quote} diffusion of electromagnetic fields in superconductors with gradual resistive transitions