Single-particle digitization strategy for quantum computation of a ϕ4 scalar field theory

João Barata, Niklas Mueller, Andrey Tarasov, and Raju Venugopalan
Phys. Rev. A 103, 042410 – Published 8 April 2021

Abstract

Motivated by the parton picture of high-energy quantum chromodynamics, we develop a single-particle digitization strategy for the efficient quantum simulation of relativistic scattering processes in a d+1-dimensional scalar ϕ4 field theory. We work out quantum algorithms for initial state preparation, time evolution, and final state measurements. We outline a nonperturbative renormalization strategy in this single-particle framework.

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  • Received 21 December 2020
  • Revised 11 March 2021
  • Accepted 23 March 2021

DOI:https://doi.org/10.1103/PhysRevA.103.042410

©2021 American Physical Society

Physics Subject Headings (PhySH)

Particles & FieldsQuantum Information, Science & TechnologyNuclear Physics

Authors & Affiliations

João Barata*

  • Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, E-15782 Galicia, Spain

Niklas Mueller

  • Department of Physics, University of Maryland, College Park, Maryland 20742, USA

Andrey Tarasov

  • Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA and Joint BNL-SBU Center for Frontiers in Nuclear Science (CFNS) at Stony Brook University, Stony Brook, New York 11794, USA

Raju Venugopalan§

  • Physics Department, Brookhaven National Laboratory, Bldg. 510A, Upton, New York 11973, USA

  • *joaolourenco.henriques@usc.es
  • niklasmu@umd.edu
  • tarasov.3@osu.edu
  • §raju@bnl.gov

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Issue

Vol. 103, Iss. 4 — April 2021

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