STABILITY OF MONOPOLE CONDENSATION IN <font>SU</font>(2) QCD
Y. M. ChoDepartment of Physics, College of Natural Sciences, Seoul National University, Seoul 151-747, KoreaMichael L. WalkerDepartment of Physics and Applied Physics, and College of Natural Sciences, Kyung Hee University, Yong-In, KyongGi 449-701, Korea
2004en
ABI
Аннотация
We propose to resolve the controversy regarding the stability of the monopole condensation in QCD by calculating the imaginary part of the one-loop effective action perturbatively. We calculate the imaginary part perturbatively to the order g 2 with two different methods, with Feynman diagram and with Schwinger's method. Our result shows that with the magnetic background the effective action has no imaginary part, but with the electric background it acquires a negative imaginary part. This strongly indicates a stable monopole condensation in QCD.
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