Qudit Gate Decomposition Dependence for Lattice Gauge Theories

Fuente: arXiv
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Auteurs principaux: Kürkçüoglu, Doga Murat, Lamm, Henry, Maestri, Andrea
Format: Preprint
Publié: 2024
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author Kürkçüoglu, Doga Murat
Lamm, Henry
Maestri, Andrea
author_facet Kürkçüoglu, Doga Murat
Lamm, Henry
Maestri, Andrea
contents In this work, we investigate the effect of decomposition basis on primitive qudit gates on superconducting radio-frequency cavity-based quantum computers with applications to lattice gauge theory. Three approaches are tested: SNAP & Displacement gates, ECD & single-qubit rotations $R(θ,ϕ)$, and optimal pulse control. For all three decompositions, implementing the necessary sequence of rotations concurrently rather then sequentially can reduce the primitive gate run time. The number of blocks required for the faster ECD & $R_p(θ)$ is found to scale $\mathcal{O}(d^2)$, while slower SNAP & Displacement set scales at worst $\mathcal{O}(d)$. For qudits with $d<10$, the resulting gate times for the decompositions is similar, but strongly-dependent on experimental design choices. Optimal control can outperforms both decompositions for small $d$ by a factor of 2-12 at the cost of higher classical resources. Lastly, we find that SNAP & Displacement are slightly more robust to a simplified noise model.
format Preprint
id arxiv_https___arxiv_org_abs_2410_16414
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Qudit Gate Decomposition Dependence for Lattice Gauge Theories
Kürkçüoglu, Doga Murat
Lamm, Henry
Maestri, Andrea
Quantum Physics
High Energy Physics - Lattice
In this work, we investigate the effect of decomposition basis on primitive qudit gates on superconducting radio-frequency cavity-based quantum computers with applications to lattice gauge theory. Three approaches are tested: SNAP & Displacement gates, ECD & single-qubit rotations $R(θ,ϕ)$, and optimal pulse control. For all three decompositions, implementing the necessary sequence of rotations concurrently rather then sequentially can reduce the primitive gate run time. The number of blocks required for the faster ECD & $R_p(θ)$ is found to scale $\mathcal{O}(d^2)$, while slower SNAP & Displacement set scales at worst $\mathcal{O}(d)$. For qudits with $d<10$, the resulting gate times for the decompositions is similar, but strongly-dependent on experimental design choices. Optimal control can outperforms both decompositions for small $d$ by a factor of 2-12 at the cost of higher classical resources. Lastly, we find that SNAP & Displacement are slightly more robust to a simplified noise model.
title Qudit Gate Decomposition Dependence for Lattice Gauge Theories
topic Quantum Physics
High Energy Physics - Lattice
url https://arxiv.org/abs/2410.16414