Scalable cold-atom quantum simulator for two-dimensional QED

ORAL

Abstract

We propose a scalable analog quantum simulator for quantum electrodynamics (QED) in two spatial dimensions. The proposed 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. We use this four-body process to 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 the pure gauge theory of compact QED and discuss how the phenomenon of confinement of electric charges can be described by the quantum simulator.

*This work is funded by the DFG (German Research Foundation) – Project-ID 27381115 – SFB 1225 ISOQUANT. This work was supported by the Simons Collaboration on UltraQuantum Matter, which is a grant from the Simons Foundation (651440, P.Z.). F.J. acknowledges the Emmy-Noether grant (Project-ID 377616843).

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Publication: arXiv:2012.10432v1

Presenters

  • Robert Ott

    • Heidelberg University, Germany
    • Heidelberg University, Institute for Theoretical Physics

Authors

  • Robert Ott

    • Heidelberg University, Germany
    • Heidelberg University, Institute for Theoretical Physics

  • Torsten V Zache

    • University of Innsbruck, Austria
    • Center for Quantum Physics, University of Innsbruck, 6020 Innsbruck, Austria, Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, 6020 I

  • Fred Jendrzejewski

    • Heidelberg University, Kirchhoff Institute for Physics, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany

  • Jürgen Berges

    • Heidelberg University, Institute for Theoretical Physics