Real Time Dynamics and Confinement in the $\mathbb{Z}_{n}$ Schwinger-Weyl lattice model for 1+1 QED
Quantum Physics
2020-07-01 v5 Strongly Correlated Electrons
High Energy Physics - Lattice
High Energy Physics - Theory
Abstract
We study the out-of-equilibrium properties of dimensional quantum electrodynamics (QED), discretized via the staggered-fermion Schwinger model with an Abelian gauge group. We look at two relevant phenomena: first, we analyze the stability of the Dirac vacuum with respect to particle/antiparticle pair production, both spontaneous and induced by an external electric field; then, we examine the string breaking mechanism. We observe a strong effect of confinement, which acts by suppressing both spontaneous pair production and string breaking into quark/antiquark pairs, indicating that the system dynamics displays a number of out-of-equilibrium features.
Keywords
Cite
@article{arxiv.1909.04821,
title = {Real Time Dynamics and Confinement in the $\mathbb{Z}_{n}$ Schwinger-Weyl lattice model for 1+1 QED},
author = {Giuseppe Magnifico and Marcello Dalmonte and Paolo Facchi and Saverio Pascazio and Francesco V. Pepe and Elisa Ercolessi},
journal= {arXiv preprint arXiv:1909.04821},
year = {2020}
}
Comments
21 pages, 17 figures