Nonperturbative signatures of fractons in the twisted multiflavor Schwinger Model
Year: 2025
Type: article
Abstract: Gauge-field configurations with nontrivial 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 semiclassical 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 nontrivial topology of gauge theories persists in challenging nonperturbative regimes, and it shows a path forward to probing it in tabletop experiments.
DOI: 10.1103/lpwm-65hr
Authors: Pavel P. Popov, Valentin Kasper, Maciej Lewenstein, Erez Zohar, Paolo Stornati, Philipp Hauke
Institutions: Institute of Photonic Sciences, Barcelona Institute of Science and Technology, Institució Catalana de Recerca i Estudis Avançats, Hebrew University of Jerusalem, Istituto Nazionale di Fisica Nucleare, University of Trento, Istituto Nazionale di Fisica Nucleare, Trento Institute for Fundamental Physics And Applications
Language: English
Topic: Quantum many-body systems
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Funders: Fundación Cellex, “la Caixa” Foundation, Centres de Recerca de Catalunya, Institut de Ciències Fotòniques, European Commission, Generalitat de Catalunya, Federación Española de Enfermedades Raras, Israel Science Foundation, Fondazione Bruno Kessler, Università degli Studi di Trento, Consiglio Nazionale delle Ricerche, Ministerio de Ciencia e Innovación, Barcelona Supercomputing Center, Provincia Autonoma di Trento, QuantERA, European Climate, Infrastructure and Environment Executive Agency, FUNDACIÓ Privada MIR-PUIG, Ministero dell'Università e della Ricerca, Horizon 2020 Framework Programme, HORIZON EUROPE Framework Programme, European Research Council, Agència de Gestió d'Ajuts Universitaris i de Recerca, Instituto Nazionale di Fisica Nucleare, European Regional Development Fund, Agencia Estatal de Investigación, European Social Fund, HORIZON EUROPE Marie Sklodowska-Curie Actions, HORIZON EUROPE European Innovation Council, European Innovation Council and Small and Medium-sized Enterprises Executive Agency, NextGenerationEU
Awards: G1049070721, G1188902550, G120905174, G1244169723, G1255325603, G1272927172, G148743912, NExt level Quantum information processing for Science and Technology, G1622782223, G162601807, G1650885681, G1681549477, Junior Leader la Caixa Postdoctoral Fellowship Programme: Shaping the new generation of leaders in research, G1888088267, G1908469581, G1953887145, G2033550206, Programmable Atomic Large-scale Quantum Simulation 2 - SGA1, G2064873908, G2105798022, G2236380367, G2262748287, G2575991346, G2601397997, G2744780120, G2763573136, G2871827553, G288263039, G2988934680, G3005324705, G300979063, G3278703066, G3480869486, G348919436, G357246561, G3639969887, G3642498144, G3674674691, G3681454997, G3798495387, G3939077204, G4042783231, G408490004, G410571670, G4239348134, G425668148, G434337789, G4359800586, G4368799831, G4391008399, G451917667, G4630312626, G4680432388, G4727238542, G4856404060, G4993383890, G5065677113, G5080475149, G5271502856, G531036588, G575169067, G5852091828, QuantERA II ERA-NET Cofund in Quantum Technologies, G5955501538, G5967599077, G5971291011, G5989965532, G6275411036, G6482940084, G6552004136, G6656126374, G6727213032, G6731467812, G6743926034, G704744937, G7048927246, G7084143925, G7327758667, G7353978519, G7425137858, G7574054369, G7596336062, G7615865815, G7731791180, G8180681537, G8283979283, G8362900132, G8370579132, Optical Topologic Logic, G8665153912, G8684520763, G8959349008, G932513554
OpenAlex ID: W4411414849