Probing many-body dynamics on a 51-atom quantum simulator

2017/07/13 by Hannes Bernien, Sylvain Schwartz, Alexander Keesling +10 · 1 voice · 2,529 citations
Computer Science · Mathematics · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Computer science #Mathematics #Phase transition #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum computer #Quantum dynamics #Quantum many-body systems #Quantum mechanics #Quantum phase transition #Quantum phases #Quantum simulator #Qubit #Realization (probability) #Rydberg atom #Rydberg formula #Spin (aerodynamics) #Statistical physics #cond-mat.quant-gas #physics.atom-ph #quant-ph

paper · pdf · doi:10.1038/nature24622

published in Nature 551(7682), 579-584 (Nature Portfolio) · 17 pages, 13 figures

arxiv published 2017/07/13 · openalex publication_date 2017/11/28 · arxiv created 2017/11/30 · arxiv updated 2017/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Controllable, coherent many-body systems can provide insights into the fundamental properties of quantum matter, enable the realization of new quantum phases and could ultimately lead to computational systems that outperform existing computers based on classical approaches. Here we demonstrate a method for creating controlled many-body quantum matter that combines deterministically prepared, reconfigurable arrays of individually trapped cold atoms with strong, coherent interactions enabled by excitation to Rydberg states. We realize a programmable Ising-type quantum spin model with tunable interactions and system sizes of up to 51 qubits. Within this model, we observe phase transitions into spatially ordered states that break various discrete symmetries, verify the high-fidelity preparation of these states and investigate the dynamics across the phase transition in large arrays of atoms. In particular, we observe robust manybody dynamics corresponding to persistent oscillations of the order after a rapid quantum quench that results from a sudden transition across the phase boundary. Our method provides a way of exploring many-body phenomena on a programmable quantum simulator and could enable realizations of new quantum algorithms.

Citations

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• Defining and detecting quantum speedup
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• Crystallization in Ising quantum magnets
• The eigenstate thermalization hypothesis in constrained Hilbert spaces: A case study in non-Abelian anyon chains
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• Quantum Computing

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Discussions

• 51-qubit quantum computer [hn, 3 points, 0 comments]

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