Two-Dimensional Thermofield Bosonization II: Massive Fermions

Abstract

We consider the perturbative computation of the N-point function of chiral densities of massive free fermions at finite temperature within the thermofield dynamics approach. The infinite series in the mass parameter for the N-point functions are computed in the fermionic formulation and compared with the corresponding perturbative series in the interaction parameter in the bosonized thermofield formulation. Thereby we establish in thermofield dynamics the formal equivalence of the massive free fermion theory with the sine-Gordon thermofield model for a particular value of the sine-Gordon parameter. We extend the thermofield bosonization to include the massive Thirring model.

21 pages, to be published in Annals of Physics

References in corpus (3)

• Bosonization at Finite Temperature and Anyon Condensation
• Two-Dimensional Thermofield Bosonization
• Chiral Symmetry restoration in the massive Thirring model at finite T and $\mu$: Dimensional reduction and the Coulomb gas

Cited by in corpus (4)

• Quantum Electrodynamics in Two-Dimensions at Finite Temperature. Thermofield Bosonization Approach
• Thermofield Quantum Electrodynamics in 1 + 1 Dimensions at Finite Chemical Potential: A Bosonization Approach
• On fermionic tilde conjugation rules and thermal bosonization. Hot and cold thermofields
• Thermofield-Bosonization on Compact Space