Mass-Assisted Local Deconfinement in a Confined $\mathbb{Z}_2$ Lattice Gauge Theory

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Main Authors: Desaules, Jean-Yves, Iadecola, Thomas, Halimeh, Jad C.
Format: Preprint
Published: 2024
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author Desaules, Jean-Yves
Iadecola, Thomas
Halimeh, Jad C.
author_facet Desaules, Jean-Yves
Iadecola, Thomas
Halimeh, Jad C.
contents Confinement is a prominent phenomenon in condensed matter and high-energy physics that has recently become the focus of quantum-simulation experiments of lattice gauge theories (LGTs). As such, a theoretical understanding of the effect of confinement on LGT dynamics is not only of fundamental importance, but can lend itself to upcoming experiments. Here, we show how confinement in a $\mathbb{Z}_2$ LGT can be locally avoided by proximity to a resonance between the fermion mass and the electric field strength. Furthermore, we show that this local deconfinement can become global for certain initial conditions, where information transport occurs over the entire chain. In addition, we show how this can lead to strong quantum many-body scarring starting in different initial states. Our findings provide deeper insights into the nature of confinement in $\mathbb{Z}_2$ LGTs and can be tested on current and near-term quantum devices.
format Preprint
id arxiv_https___arxiv_org_abs_2404_11645
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Mass-Assisted Local Deconfinement in a Confined $\mathbb{Z}_2$ Lattice Gauge Theory
Desaules, Jean-Yves
Iadecola, Thomas
Halimeh, Jad C.
Quantum Gases
Strongly Correlated Electrons
High Energy Physics - Lattice
High Energy Physics - Theory
Quantum Physics
Confinement is a prominent phenomenon in condensed matter and high-energy physics that has recently become the focus of quantum-simulation experiments of lattice gauge theories (LGTs). As such, a theoretical understanding of the effect of confinement on LGT dynamics is not only of fundamental importance, but can lend itself to upcoming experiments. Here, we show how confinement in a $\mathbb{Z}_2$ LGT can be locally avoided by proximity to a resonance between the fermion mass and the electric field strength. Furthermore, we show that this local deconfinement can become global for certain initial conditions, where information transport occurs over the entire chain. In addition, we show how this can lead to strong quantum many-body scarring starting in different initial states. Our findings provide deeper insights into the nature of confinement in $\mathbb{Z}_2$ LGTs and can be tested on current and near-term quantum devices.
title Mass-Assisted Local Deconfinement in a Confined $\mathbb{Z}_2$ Lattice Gauge Theory
topic Quantum Gases
Strongly Correlated Electrons
High Energy Physics - Lattice
High Energy Physics - Theory
Quantum Physics
url https://arxiv.org/abs/2404.11645