Eur. Phys. J. Plus (2018) 133: 479
https://doi.org/10.1140/epjp/i2018-12334-1

Regular Article

Duality between the massive sine-Gordon and the massive Schwinger models at finite temperature

McGill University, H3A 2T8, Montreal, QC, Canada

^* e-mail: mir.faruk@mail.mcgill.ca

Received: 3 August 2018
Accepted: 19 October 2018
Published online: 27 November 2018

Abstract

The massive Schwinger and the massive sine-Gordon models are proved to be equivalent at finite temperature, using the path-integral framework. The well-known relations among the parameters of these models to establish the duality at T = 0 also remain valid at non-zero temperature.