Speaker
Minati Biswal
(The Institute of Mathematical Sciences)
Description
We study $Z_N$ symmetry in $SU(N)+$Higgs theories. The $Z_N$ symmetry can act only
on the gauge fields, the action is not invariant. This leads to explicit breaking of $Z_N$ symmetry. However, we find that the strength of the explicit breaking depends on the parameters of the theory, vanishing in parts of the symmetric phase. According to conventional expectations the symmetry is restored only in the pure gauge limit. We argue that the symmetry restoration is due to enhancement of the phase space in the continuum limit i.e. when the temporal lattice sites are larger.
Author
Minati Biswal
(The Institute of Mathematical Sciences)
