Digital quantum simulation of lattice gauge theories in three spatial dimensions

In the present work, we propose a scheme for the digital formulation of lattice gauge theories with dynamical fermions in 3 + 1 dimensions. All interactions are obtained as a stroboscopic sequence of two-body interactions with an auxiliary system. This enables quantum simulations of lattice gauge th...

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Main Authors: Julian Bender, Erez Zohar, Alessandro Farace, J Ignacio Cirac
Format: Article
Language:English
Published: IOP Publishing 2018-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/aadb71
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author Julian Bender
Erez Zohar
Alessandro Farace
J Ignacio Cirac
author_facet Julian Bender
Erez Zohar
Alessandro Farace
J Ignacio Cirac
author_sort Julian Bender
collection DOAJ
description In the present work, we propose a scheme for the digital formulation of lattice gauge theories with dynamical fermions in 3 + 1 dimensions. All interactions are obtained as a stroboscopic sequence of two-body interactions with an auxiliary system. This enables quantum simulations of lattice gauge theories where the magnetic four-body interactions arising in two and more spatial dimensions are obtained without the use of perturbation theory, thus resulting in stronger interactions compared with analogue approaches. The simulation scheme is applicable to lattice gauge theories with either compact or finite gauge groups. The required bounds on the digitization errors in lattice gauge theories, due to the sequential nature of the stroboscopic time evolution, are provided. Furthermore, an implementation of a lattice gauge theory with a non-abelian gauge group, the dihedral group D _3 , is proposed employing the aforementioned simulation scheme using ultracold atoms in optical lattices.
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spelling doaj.art-a8372889ebbc40518a0c35b1d79729222023-08-08T14:52:40ZengIOP PublishingNew Journal of Physics1367-26302018-01-0120909300110.1088/1367-2630/aadb71Digital quantum simulation of lattice gauge theories in three spatial dimensionsJulian Bender0Erez Zohar1Alessandro Farace2J Ignacio Cirac3Max-Planck-Institut für Quantenoptik , Hans-Kopfermann-Straße 1, D-85748 Garching, GermanyMax-Planck-Institut für Quantenoptik , Hans-Kopfermann-Straße 1, D-85748 Garching, GermanyMax-Planck-Institut für Quantenoptik , Hans-Kopfermann-Straße 1, D-85748 Garching, GermanyMax-Planck-Institut für Quantenoptik , Hans-Kopfermann-Straße 1, D-85748 Garching, GermanyIn the present work, we propose a scheme for the digital formulation of lattice gauge theories with dynamical fermions in 3 + 1 dimensions. All interactions are obtained as a stroboscopic sequence of two-body interactions with an auxiliary system. This enables quantum simulations of lattice gauge theories where the magnetic four-body interactions arising in two and more spatial dimensions are obtained without the use of perturbation theory, thus resulting in stronger interactions compared with analogue approaches. The simulation scheme is applicable to lattice gauge theories with either compact or finite gauge groups. The required bounds on the digitization errors in lattice gauge theories, due to the sequential nature of the stroboscopic time evolution, are provided. Furthermore, an implementation of a lattice gauge theory with a non-abelian gauge group, the dihedral group D _3 , is proposed employing the aforementioned simulation scheme using ultracold atoms in optical lattices.https://doi.org/10.1088/1367-2630/aadb71lattice gauge theoryquantum simulationultracold atoms
spellingShingle Julian Bender
Erez Zohar
Alessandro Farace
J Ignacio Cirac
Digital quantum simulation of lattice gauge theories in three spatial dimensions
New Journal of Physics
lattice gauge theory
quantum simulation
ultracold atoms
title Digital quantum simulation of lattice gauge theories in three spatial dimensions
title_full Digital quantum simulation of lattice gauge theories in three spatial dimensions
title_fullStr Digital quantum simulation of lattice gauge theories in three spatial dimensions
title_full_unstemmed Digital quantum simulation of lattice gauge theories in three spatial dimensions
title_short Digital quantum simulation of lattice gauge theories in three spatial dimensions
title_sort digital quantum simulation of lattice gauge theories in three spatial dimensions
topic lattice gauge theory
quantum simulation
ultracold atoms
url https://doi.org/10.1088/1367-2630/aadb71
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