name

Sodano Pasquale

refid

20364

email

pasquale.sodano@pg.infn.it

title

Lattice Chern Simons Gauge Theories

collaboration

M.C. Diamantini and F. Berruto
Most reecent work where refs to our previous work may be
found:
On Pure Lattice Chern-Simons Gauge Theories
Phys. Lett. B in press, hep-lat 0004203

abstract

We show that for the Abelian Chern-Simons model defined on an infinite Euclidean
lattice, there is a proliferation of zero modes which is reminiscent of the
Nielsen-Ninomiya no-go theorem for fermions. A gauge invariant,local and parity
even term such as the Maxwell term eliminates the extra zero modes by opening
a gap with a mechanism similar to that leading to Wilson fermions on the
lattice. We then identify the topological excitations ( and their interactions)
of the Maxwell-Chern-Simons theory.

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