We show the result of the lattice gauge field tensor which is derived from
the classical continuum limit of the overlap Dirac operator. By analogous
construction, it was recently proposed that the gauge action can be obtained
from the overlap operator as well which is proportional to Tr a D_{ov}. We
discuss how to carry out Monte Carlo simulations of such a gauge action
together with the overlap fermion.Comment: 7 pages, references added and typos correcte
