出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：For compact U(1) lattice gauge theory (LGT) we have performed a nite size scaling analysis
on NtN3
s lattices for Nt xed and Ns ! ¥, approaching the phase transition from the conned
phase. For Nt = 4, 5 and 6 our data contradict the expected scenario that this transition is either
rst order or in the universality class of the 3d XY model. If there are no conceptional aws in
applying the argument that the Gaussian xed point in 3d is unstable to our systems, estimates of
the critical exponents a=n , g =n , (1b )=n and 2h indicate the existence of a new, non-trivial
renormalization group xed point for second order phase transitions in 3d. Such a xed point
would be of importance for renormalization group theory and statistical physics.
