Quantum Simulations of Two-Dimensional Non-Abelian Adjoint String Breaking
Abstract
Quantum computers offer the potential to directly probe the dynamics of strongly coupled quantum field theories. As a step towards reaching this potential, local Krylov-based truncations of a pure SU(2) lattice gauge theory on a triangular lattice are constructed. Adjoint strings connected to dynamical gluons are constructed in this truncated theory, and the resonances dominating the long-term dynamics at a large value of the gauge coupling are determined. Local operators are constructed to identify string oscillations and breakings. This is used to perform a quantum simulation of adjoint string breaking on an 8×8 and 16×8-site lattice with ibm_boston using all 156 qubits. Quantitative agreement with tensor network simulations is obtained for circuits with 7,634 CZ gates with a two-qubit gate depth of 218. In this simulation, the rates of oscillations and glueball production are identified with a distinctly non-Abelian signature of the underlying gauge group.
Related
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BibTeX
@misc{ciavarella2026quantum,
title = {{Quantum Simulations of Two-Dimensional Non-Abelian Adjoint String Breaking}},
author = {Anthony N. Ciavarella and Roland de Putter and Ed Younis and Ermal Rrapaj},
howpublished = {arXiv},
year = {2026},
month = aug,
doi = {10.48550/arxiv.2608.28752},
eprint = {2608.28752},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2608.28752},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Quantum Simulations of Two-Dimensional Non-Abelian Adjoint String Breaking
AU - Anthony N. Ciavarella
AU - Roland de Putter
AU - Ed Younis
AU - Ermal Rrapaj
PY - 2026
DA - 2026/08/28
PB - arXiv
DO - 10.48550/arxiv.2608.28752
UR - https://arxiv.org/abs/2608.28752
AB - Quantum computers offer the potential to directly probe the dynamics of strongly coupled quantum field theories. As a step towards reaching this potential, local Krylov-based truncations of a pure SU(2) lattice gauge theory on a triangular lattice are constructed. Adjoint strings connected to dynamical gluons are constructed in this truncated theory, and the resonances dominating the long-term dynamics at a large value of the gauge coupling are determined. Local operators are constructed to identify string oscillations and breakings. This is used to perform a quantum simulation of adjoint string breaking on an 8×8 and 16×8-site lattice with ibm_boston using all 156 qubits. Quantitative agreement with tensor network simulations is obtained for circuits with 7,634 CZ gates with a two-qubit gate depth of 218. In this simulation, the rates of oscillations and glueball production are identified with a distinctly non-Abelian signature of the underlying gauge group.
ER -