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gösta gustafson

Gösta Gustafson

Professor

gösta gustafson

Collider events on a quantum computer

Author

  • Gösta Gustafson
  • Stefan Prestel
  • Michael Spannowsky
  • Simon Williams

Summary, in English

High-quality simulated data is crucial for particle physics discoveries. Therefore, parton shower algorithms are a major building block of the data synthesis in event generator programs. However, the core algorithms used to generate parton showers have barely changed since the 1980s. With quantum computers’ rapid and continuous development, dedicated algorithms are required to exploit the potential that quantum computers provide to address problems in high-energy physics. This paper presents a novel approach to synthesising parton showers using the Discrete QCD method. The algorithm benefits from an elegant quantum walk implementation which can be embedded into the classical toolchain. We use the ibm_algiers device to sample parton shower configurations and generate data that we compare against measurements taken at the ALEPH, DELPHI and OPAL experiments. This is the first time a Noisy Intermediate-Scale Quantum (NISQ) device has been used to simulate realistic high-energy particle collision events.

Department/s

  • Theoretical Particle Physics - Has been reorganised

Publishing year

2022-11

Language

English

Publication/Series

Journal of High Energy Physics

Volume

2022

Issue

11

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Keywords

  • Jets and Jet Substructure
  • Parton Shower

Status

Published

ISBN/ISSN/Other

  • ISSN: 1029-8479