Massive Schwinger model at finite $\theta$

Abstract

Using the approach developed in [V. Azcoiti, G. Di Carlo, A. Galante, V. Laliena, \textit{Phys. Lett.} \textbf{B563}, (2003) 117], we are able to reconstruct the behavior of the massive 1-flavor Schwinger model with a $\theta$ term and a quantized topological charge. We calculate the full dependence of the order parameter with $\theta$. Our results at $\theta =\pi$ are compatible with Coleman's conjecture on the phase diagram of this model.

8 pages, 8 figures

References in corpus (4)

• Critical behavior of lattice Schwinger model with topological term at $\theta =\pi$ using Grassmann tensor renormalization group
• Critical Behavior of CP^1 at theta = pi, Haldane's Conjecture and the Universality Class
• Physics of eta-prime with rooted staggered quarks
• Topology in the SU(Nf) chiral symmetry restored phase of unquenched QCD and axion cosmology