Gauge-fixing, semiclassical approximation and potentials for graded Chern-Simons theories

TL;DR

This paper develops a gauge-fixing method for graded Chern-Simons theories using the Batalin-Vilkovisky formalism, enabling the derivation of Feynman rules and analysis of semiclassical effects, including zero-modes.

Contribution

It introduces a gauge-fixing procedure that handles zero-modes and derives Feynman rules for graded Chern-Simons theories within the BV framework.

Findings

Derived simple gauge-fixed action for graded Chern-Simons theories.

Established Feynman rules including ghosts and antighosts.

Analyzed semiclassical approximation and effective potential for massless modes.

Abstract

We perform the Batalin-Vilkovisky analysis of gauge-fixing for graded Chern-Simons theories. Upon constructing an appropriate gauge-fixing fermion, we implement a Landau-type constraint, finding a simple form of the gauge-fixed action. This allows us to extract the associated Feynman rules taking into account the role of ghosts and antighosts. Our gauge-fixing procedure allows for zero-modes, hence is not limited to the acyclic case. We also discuss the semiclassical approximation and the effective potential for massless modes, thereby justifying some of our previous constructions in the Batalin-Vilkovisky approach.