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Real Time Dynamics and Confinement in the $\mathbb{Z}_{n}$ Schwinger-Weyl lattice model for 1+1 QED

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arxiv 1909.04821 v5 pith:RJN5PKA4 submitted 2019-09-11 quant-ph cond-mat.str-elhep-lathep-th

Giuseppe Magnifico , Marcello Dalmonte , Paolo Facchi , Saverio Pascazio , Francesco V. Pepe , Elisa Ercolessi This is my paper · ORCID
classification quant-phcond-mat.str-elhep-lathep-th
keywords breakingconfinementdynamicsmathbbmodelout-of-equilibriumpairproduction
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We study the out-of-equilibrium properties of $1+1$ dimensional quantum electrodynamics (QED), discretized via the staggered-fermion 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 out-of-equilibrium features.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Dynamics of entanglement entropy for a locally monitored lattice gauge theory

    quant-ph 2026-03 reject novelty 5.0 of 10

    Local projective measurements of electric flux and mass density in a 1+1D Z2 gauge theory yield size-independent late-time entanglement saturation, indicating no measurement-induced phase transition in the no-click limit.

  2. Effects of monitoring on entanglement dynamics for $1+1$D $\mathbb Z_2$ lattice gauge theory

    quant-ph 2026-03 conditional novelty 5.0 of 10

    In the no-click limit, both local and non-local monitoring of a 1+1D Z2 lattice gauge theory produce late-time entanglement saturation values that are independent of system size, giving no evidence of a measurement-in...

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