Smooth Bosonization as a Quantum Canonical Transformation
arXiv:hep-th/9702193 · doi:10.1103/PhysRevD.55.7739
Abstract
We consider a 1+1 dimensional field theory which contains both a complex fermion field and a real scalar field. We then construct a unitary operator that, by a similarity transformation, gives a continuum of equivalent theories which smoothly interpolate between the massive Thirring model and the sine-Gordon model. This provides an implementation of smooth bosonization proposed by Damgaard et al. as well as an example of a quantum canonical transformation for a quantum field theory.
20 pages, revtex