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Scalable cold-atom quantum simulator for two-dimensional QED

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arxiv 2012.10432 v1 pith:4I4UZILZ submitted 2020-12-18 cond-mat.quant-gas hep-phquant-ph

classification cond-mat.quant-gashep-phquant-ph
keywords quantumgaugesimulatordimensionslatticescalablespatialtheory
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We propose a scalable analog quantum simulator for quantum electrodynamics (QED) in two spatial dimensions. The setup for the U(1) lattice gauge field theory employs inter-species spin-changing collisions in an ultra-cold atomic mixture trapped in an optical lattice. Building on the previous one-dimensional implementation scheme of Ref. [1] we engineer spatial plaquette terms for magnetic fields, thus solving a major obstacle towards experimental realizations of realistic gauge theories in higher dimensions. We apply our approach to pure gauge theory and discuss how the phenomenon of confinement of electric charges can be described by the quantum simulator.

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  1. Obtaining continuum physics from dynamical simulations of Hamiltonian lattice gauge theories

    hep-lat 2025-06 conditional novelty 6.0 of 10

    The paper introduces the SBTE protocol, which treats approximate time evolution error as negligible once it is below statistical uncertainty, and shows this makes continuum-limit renormalization in lattice gauge theor...

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