Demonstration of weighted graph optimization on a Rydberg atom array using local light-shifts

Fuente: arXiv
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Autores principales: de Oliveira, A. G., Diamond-Hitchcock, E., Walker, D. M., Wells-Pestell, M. T., Pelegrí, G., Picken, C. J., Malcolm, G. P. A., Daley, A. J., Bass, J., Pritchard, J. D.
Formato: Preprint
Publicado: 2024
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author de Oliveira, A. G.
Diamond-Hitchcock, E.
Walker, D. M.
Wells-Pestell, M. T.
Pelegrí, G.
Picken, C. J.
Malcolm, G. P. A.
Daley, A. J.
Bass, J.
Pritchard, J. D.
author_facet de Oliveira, A. G.
Diamond-Hitchcock, E.
Walker, D. M.
Wells-Pestell, M. T.
Pelegrí, G.
Picken, C. J.
Malcolm, G. P. A.
Daley, A. J.
Bass, J.
Pritchard, J. D.
contents Neutral atom arrays have emerged as a versatile platform towards scalable quantum computation and optimization. In this paper we present demonstrations of solving maximum weighted independent set problems on a Rydberg atom array using annealing with local light-shifts. We verify the ability to prepare weighted graphs in 1D and 2D arrays, including embedding a five vertex non-unit disk graph using nine physical qubits and demonstration of a simple crossing gadget. We find common annealing ramps leading to preparation of the target ground state robustly over a substantial range of different graph weightings. This work provides a route to exploring large-scale optimization of non-planar weighted graphs relevant for solving relevant real-world problems.
format Preprint
id arxiv_https___arxiv_org_abs_2404_02658
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Demonstration of weighted graph optimization on a Rydberg atom array using local light-shifts
de Oliveira, A. G.
Diamond-Hitchcock, E.
Walker, D. M.
Wells-Pestell, M. T.
Pelegrí, G.
Picken, C. J.
Malcolm, G. P. A.
Daley, A. J.
Bass, J.
Pritchard, J. D.
Quantum Physics
Atomic Physics
Neutral atom arrays have emerged as a versatile platform towards scalable quantum computation and optimization. In this paper we present demonstrations of solving maximum weighted independent set problems on a Rydberg atom array using annealing with local light-shifts. We verify the ability to prepare weighted graphs in 1D and 2D arrays, including embedding a five vertex non-unit disk graph using nine physical qubits and demonstration of a simple crossing gadget. We find common annealing ramps leading to preparation of the target ground state robustly over a substantial range of different graph weightings. This work provides a route to exploring large-scale optimization of non-planar weighted graphs relevant for solving relevant real-world problems.
title Demonstration of weighted graph optimization on a Rydberg atom array using local light-shifts
topic Quantum Physics
Atomic Physics
url https://arxiv.org/abs/2404.02658