Journal Article

PUBDB-2026-00165

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Analysis of the confinement string in (2+1)-dimensional Quantum Electrodynamics with a trapped-ion quantum computer

Crippa, A. (Corresponding author)DESY* ; Jansen, K.DESY* ; Rinaldi, E.

2026
Springer Nature London

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Please use a persistent id in citations: doi:10.1038/s42005-025-02465-8  doi:https://doi.org/10.1038/s42005-025-02465-8  doi:10.3204/PUBDB-2026-00165

Report No.: arXiv:2411.05628

Abstract: Understanding strongly interacting quantum field theories is a central challenge in theoretical physics, with direct relevance to nuclear, high-energy and condensed matter systems. Here we present a quantum algorithm for compact lattice Quantum Electrodynamics in 2+1 dimensions with dynamical fermionic matter. Using a variational quantum approach, we extract the static potential between charges across Coulomb, confinement, and string-breaking regimes. Our method employs a symmetry-preserving, resource-efficient circuit to prepare ground states, enabling accurate calculations on the Quantinuum H1-1 trapped-ion device and emulator, in agreement with noiseless simulations. Moreover, we visualize the electric field flux configurations that mainly contribute to the wave function of the quantum ground state, giving insights into the mechanisms of confinement and string-breaking.These results are a promising step forward in the grand challenge of solving higher dimensional lattice gauge theory problems with quantum computing algorithms.

Note: 21 pages, 26 figures, 3 tables

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Contributing Institute(s):

1. Centre f. Quantum Techno. a. Application (CQTA)
2. Zeuthen Particle PhysicsTheory (Z_ZPPT)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2026

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Crippa, A. (Corresponding author)DESY* ; Jansen, K. (Corresponding author)DESY* ; Rinaldi, E. (Corresponding author)
Analysis of the confinement string in (2 + 1)-dimensional Quantum Electrodynamics with a trapped-ion quantum computer
(2026) [10.1038/s42005-025-02465-8]2026     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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