The BFT Method With Chain Structure

TL;DR

This paper introduces a modified BFT method that maintains chain structure, reducing primary constraints and gauge parameters, demonstrated through application to the bosonized chiral Schwinger model.

Contribution

The paper presents a novel BFT method preserving chain structure, simplifying constraint handling and gauge parameter reduction in gauge theories.

Findings

Fewer primary constraints in the modified BFT method

Automatic emergence of remaining constraints

Reduced independent gauge parameters

Abstract

We have constructed a modified BFT method that preserves the chain structure of constraints. This method has two advantages: first, it leads to less number of primary constraints such that the remaining constraints emerge automatically; and second, it gives less number of independent gauge parameters. We have applied the method for bosonized chiral Schwiger model. We have constructed a gauge invariant embedded Lagrangian for this model.