Non-perturbative signatures of fractons in the twisted multi-flavor Schwinger Model

• URL: http://arxiv.org/abs/2405.00745v1
• Date: Tue, 30 Apr 2024 16:15:31 GMT
• Title: Non-perturbative signatures of fractons in the twisted multi-flavor Schwinger Model
• Authors: Pavel P. Popov, Valentin Kasper, Maciej Lewenstein, Erez Zohar, Paolo Stornati, Philipp Hauke,
• Abstract summary: We show that fractons persist in strongly correlated many-body systems. We find strong fracton signatures even in highly discretized lattice models. Our work sheds light on how the non-trivial topology of gauge theories persists in challenging non-perturbative regimes.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Gauge-field configurations with non-trivial topology have profound consequences for the physics of Abelian and non-Abelian gauge theories. Over time, arguments have been gathering for the existence of gauge-field configurations with fractional topological charge, called fractons. Ground-state properties of gauge theories can drastically change in presence of fractons in the path integral. However, understanding the origin of such fractons is usually restricted to semi-classical argumentation. Here, we show that fractons persist in strongly correlated many-body systems, using the multiflavor Schwinger model of quantum electrodynamics as a paradigm example. Through detailed numerical tensor-network analysis, we find strong fracton signatures even in highly discretized lattice models, at sizes that are implementable on already existing quantum-simulation devices. Our work sheds light on how the non-trivial topology of gauge theories persists in challenging non-perturbative regimes, and it shows a path forward to probing it in table-top experiments.

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