The path to continuous Bose-Einstein condensation

Chen, Chun-Chia; Bennetts, Shayne; Schreck, Florian

doi:10.1016/bs.aamop.2023.04.004

Advances in Atomic, Molecular, and Optical Physics

2023

DOI: 10.1016/bs.aamop.2023.04.004

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The path to continuous Bose-Einstein condensation

Chun-Chia Chen¹,

Shayne Bennetts²,

Florian Schreck³

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2024

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Circuit-Based Leakage-to-Erasure Conversion in a Neutral-Atom Quantum Processor

Chow,

Buchemmavari,

Omanakuttan

et al. 2024

PRX Quantum

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Atom-loss errors are a major limitation of current state-of-the-art neutral-atom quantum computers and pose a significant challenge for scalable systems. In a quantum processor with cesium atoms, we demonstrate proof-of-principle circuit-based conversion of this form of leakage error to erasure errors via leakage-detection units (LDUs), which nondestructively map information about the presence or absence of the qubit onto the state of an ancilla. We benchmark the performance of the LDU using a three-outcome low-loss state-detection method and find that the LDU detects atom-loss errors with approximately 93.4% accuracy, limited by technical imperfections of our apparatus. We further compile and execute a LDU, wherein the roles of the original data atom and ancilla atom are exchanged under the action of the LDU, providing “free refilling” of atoms in the case of atom loss. This circuit-based leakage-to-erasure error conversion is a critical component of a neutral-atom quantum processor where the quantum information may significantly outlive the lifetime of any individual atom in the quantum register. Finally, we demonstrate that LDUs may also be used to handle other forms of leakage errors where population moves to states outside of the computational subspace. Published by the American Physical Society 2024

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Circuit-Based Leakage-to-Erasure Conversion in a Neutral-Atom Quantum Processor

Chow,

Buchemmavari,

Omanakuttan

et al. 2024

PRX Quantum

View full text Add to dashboard Cite

show abstract

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The path to continuous Bose-Einstein condensation

Cited by 1 publication

References 213 publications

Circuit-Based Leakage-to-Erasure Conversion in a Neutral-Atom Quantum Processor

Circuit-Based Leakage-to-Erasure Conversion in a Neutral-Atom Quantum Processor

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