Deconstructing scalar QED at zero and finite temperatureN. Kan1, K. Sakamoto1 and K. Shiraishi1, 2
1 Graduate School of Science and Engineering, Yamaguchi University, Yoshida, Yamaguchi-shi, Yamaguchi 753-8512, Japan
2 Faculty of Science, Yamaguchi University, Yoshida, Yamaguchi-shi, Yamaguchi 753-8512, Japan
(Received: 24 January 2003 / Published online: 14 April 2003)
We calculate the effective potential for the WLPNGB in a world with a circular latticized extra dimension. The mass of the Wilson line pseudo-Nambu-Goldstone boson (WLPNGB) is calculated from the one-loop quantum effect of scalar fields at zero and finite temperature. We show that a series expansion by the modified Bessel functions is useful to calculate the one-loop effective potentials.
© Società Italiana di Fisica, Springer-Verlag 2003