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@ARTICLE{Crippa:643381,
author = {Crippa, Arianna and Jansen, Karl and Rinaldi, Enrico},
title = {{A}nalysis of the confinement string in (2+1)-dimensional
{Q}uantum {E}lectrodynamics with a trapped-ion quantum
computer},
journal = {Communications Physics},
volume = {9},
number = {1},
issn = {2399-3650},
address = {London},
publisher = {Springer Nature},
reportid = {PUBDB-2026-00165, arXiv:2411.05628. arXiv:2411.05628},
pages = {46},
year = {2026},
note = {21 pages, 26 figures, 3 tables},
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.},
cin = {CQTA / $Z_ZPPT$},
ddc = {530},
cid = {I:(DE-H253)CQTA-20221102 / $I:(DE-H253)Z_ZPPT-20210408$},
pnm = {611 - Fundamental Particles and Forces (POF4-611)},
pid = {G:(DE-HGF)POF4-611},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)16},
eprint = {2411.05628},
howpublished = {arXiv:2411.05628},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2411.05628;\%\%$},
doi = {10.1038/s42005-025-02465-8},
url = {https://bib-pubdb1.desy.de/record/643381},
}