Stability of the perturbative vacuum against spatial variations of the Polyakov loop
Kenji Fukushima; Koichi Ohta; Kenji Fukushima; Institute of Physics, University of Tokyo, Komaba, Meguro-ku, Tokyo 153, Japan; Koichi Ohta; Institute of Physics, University of Tokyo, Komaba, Meguro-ku, Tokyo 153, Japan
Журнал:
Journal of Physics G: Nuclear and Particle Physics
Дата:
2000-09-01
Аннотация:
We investigate the effective action of the Polyakov loop with spatial variations. We expand the effective action not in powers of derivatives or momenta, but in powers of variational amplitudes. At one-loop order the results suggest that the instability towards the confining vacuum may be caused by the variational terms.
205.1Кб