Analog quantum simulation has the potential to be an indispensable technique in investigation of complex systems. In this work, we numerically investigate a one-dimensional, faithful, analog, electronic circuit simulator built out Josephson junctions for one paradigmatic models integrable field theory: sine-Gordon (qSG) model 1+1 space-time dimensions. We analyze lattice using density matrix re...

We investigate the equivalence between Thirring model and sine–Gordon model in the chirally broken phase of the Thirring model. This is unlike all other available approaches where the fermion fields of the Thirring model were quantized in the chiral symmetric phase. In the path integral approach we show that the bosonized version of the massless Thirring model is described by a quantum field th...