Quantum simulation of scattering amplitudes and interferences in perturbative QCD

Fuente: arXiv
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Main Authors: Chawdhry, Herschel A., Pellen, Mathieu, Williams, Simon
Format: Preprint
Published: 2025
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author Chawdhry, Herschel A.
Pellen, Mathieu
Williams, Simon
author_facet Chawdhry, Herschel A.
Pellen, Mathieu
Williams, Simon
contents A flagship application of quantum computers is the simulation of other quantum systems, including quantum field theories. In this article, we show how quantum computers can be employed to naturally calculate Feynman diagrams and their interferences in Quantum Chromodynamics (QCD). We simulate the colour parts of the interactions directly on the quantum computer, while the kinematic parts are for now pre-computed classically. For processes where some of the external particles are identical, we find the first hints of a potential quantum advantage. We validate our techniques using simulated quantum computers. Furthermore, for toy examples we also demonstrate our algorithms on a 56-qubit trapped-ion quantum computer. The work constitutes a further key step towards a full quantum simulation of generic perturbative QCD processes.
format Preprint
id arxiv_https___arxiv_org_abs_2507_07194
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Quantum simulation of scattering amplitudes and interferences in perturbative QCD
Chawdhry, Herschel A.
Pellen, Mathieu
Williams, Simon
High Energy Physics - Phenomenology
High Energy Physics - Theory
Quantum Physics
A flagship application of quantum computers is the simulation of other quantum systems, including quantum field theories. In this article, we show how quantum computers can be employed to naturally calculate Feynman diagrams and their interferences in Quantum Chromodynamics (QCD). We simulate the colour parts of the interactions directly on the quantum computer, while the kinematic parts are for now pre-computed classically. For processes where some of the external particles are identical, we find the first hints of a potential quantum advantage. We validate our techniques using simulated quantum computers. Furthermore, for toy examples we also demonstrate our algorithms on a 56-qubit trapped-ion quantum computer. The work constitutes a further key step towards a full quantum simulation of generic perturbative QCD processes.
title Quantum simulation of scattering amplitudes and interferences in perturbative QCD
topic High Energy Physics - Phenomenology
High Energy Physics - Theory
Quantum Physics
url https://arxiv.org/abs/2507.07194