Resistively shunted Josephson junctions: quantum field theory predictions versus MonteCarlo results

Abstract

During the last fourteen years several exact results have been obtained for theso-called boundary sine–Gordon model. In the case of a conformal bulk this 2Dboundary quantum field theory describes the universal scaling behaviour of theCaldeira–Leggett model of resistively shunted Josephson junctions. In this work, weuse a recently developed Monte Carlo technique to test some of the analyticalpredictions.