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

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Cited by in corpus (5)

• Quantum Computation of Phase Transition in the Massive Schwinger Model
• First-Order Phase Transition of the Schwinger Model with a Quantum Computer
• Evidence of a CP broken deconfined phase in 4D SU(2) Yang-Mills theory at $\theta =\pi$ from imaginary $\theta$ simulations
• Interplay between $SU(N_f)$ chiral symmetry, $U(1{)}_A$ axial anomaly and massless bosons
• Grassmann tensor renormalization group for the massive Schwinger model with a $\theta$ term using staggered fermions