Real Time Dynamics and Confinement in the $\mathbb{Z}_{n}$ SchwingerWeyl lattice model for 1+1 QED
Abstract
We study the outofequilibrium properties of $1+1$ dimensional quantum electrodynamics (QED), discretized via the staggeredfermion Schwinger model with an Abelian $\mathbb{Z}_{n}$ 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 outofequilibrium features.
 Publication:

arXiv eprints
 Pub Date:
 September 2019
 arXiv:
 arXiv:1909.04821
 Bibcode:
 2019arXiv190904821M
 Keywords:

 Quantum Physics;
 Condensed Matter  Strongly Correlated Electrons;
 High Energy Physics  Lattice;
 High Energy Physics  Theory
 EPrint:
 21 pages, 17 figures