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Mid-circuit qubit measurement and rearrangement in a $^{171}$Yb atomic array

Fuente: arXiv

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Autori principali:	Norcia, M. A., Cairncross, W. B., Barnes, K., Battaglino, P., Brown, A., Brown, M. O., Cassella, K., Chen, C. -A., Coxe, R., Crow, D., Epstein, J., Griger, C., Jones, A. M. W., Kim, H., Kindem, J. M., King, J., Kondov, S. S., Kotru, K., Lauigan, J., Li, M., Lu, M., Megidish, E., Marjanovic, J., McDonald, M., Mittiga, T., Muniz, J. A., Narayanaswami, S., Nishiguchi, C., Notermans, R., Paule, T., Pawlak, K., Peng, L., Ryou, A., Smull, A., Stack, D., Stone, M., Sucich, A., Urbanek, M., van de Veerdonk, R., Vendeiro, Z., Wilkason, T., Wu, T. -Y., Xie, X., Zhang, X., Bloom, B. J.
Natura:	Preprint
Pubblicazione:	2023
Soggetti:	Quantum Physics Atomic Physics
Accesso online:	Acceder al recurso
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_version_	1866929239693983744
author	Norcia, M. A. Cairncross, W. B. Barnes, K. Battaglino, P. Brown, A. Brown, M. O. Cassella, K. Chen, C. -A. Coxe, R. Crow, D. Epstein, J. Griger, C. Jones, A. M. W. Kim, H. Kindem, J. M. King, J. Kondov, S. S. Kotru, K. Lauigan, J. Li, M. Lu, M. Megidish, E. Marjanovic, J. McDonald, M. Mittiga, T. Muniz, J. A. Narayanaswami, S. Nishiguchi, C. Notermans, R. Paule, T. Pawlak, K. Peng, L. Ryou, A. Smull, A. Stack, D. Stone, M. Sucich, A. Urbanek, M. van de Veerdonk, R. Vendeiro, Z. Wilkason, T. Wu, T. -Y. Xie, X. Zhang, X. Bloom, B. J.
author_facet	Norcia, M. A. Cairncross, W. B. Barnes, K. Battaglino, P. Brown, A. Brown, M. O. Cassella, K. Chen, C. -A. Coxe, R. Crow, D. Epstein, J. Griger, C. Jones, A. M. W. Kim, H. Kindem, J. M. King, J. Kondov, S. S. Kotru, K. Lauigan, J. Li, M. Lu, M. Megidish, E. Marjanovic, J. McDonald, M. Mittiga, T. Muniz, J. A. Narayanaswami, S. Nishiguchi, C. Notermans, R. Paule, T. Pawlak, K. Peng, L. Ryou, A. Smull, A. Stack, D. Stone, M. Sucich, A. Urbanek, M. van de Veerdonk, R. Vendeiro, Z. Wilkason, T. Wu, T. -Y. Xie, X. Zhang, X. Bloom, B. J.
contents	Measurement-based quantum error correction relies on the ability to determine the state of a subset of qubits (ancillae) within a processor without revealing or disturbing the state of the remaining qubits. Among neutral-atom based platforms, a scalable, high-fidelity approach to mid-circuit measurement that retains the ancilla qubits in a state suitable for future operations has not yet been demonstrated. In this work, we perform imaging using a narrow-linewidth transition in an array of tweezer-confined $^{171}$Yb atoms to demonstrate nondestructive state-selective and site-selective detection. By applying site-specific light shifts, selected atoms within the array can be hidden from imaging light, which allows a subset of qubits to be measured while causing only percent-level errors on the remaining qubits. As a proof-of-principle demonstration of conditional operations based on the results of the mid-circuit measurements, and of our ability to reuse ancilla qubits, we perform conditional refilling of ancilla sites to correct for occasional atom loss, while maintaining the coherence of data qubits. Looking towards true continuous operation, we demonstrate loading of a magneto-optical trap with a minimal degree of qubit decoherence.
format	Preprint
id	arxiv_https___arxiv_org_abs_2305_19119
institution	arXiv
publishDate	2023
record_format	arxiv
spellingShingle	Mid-circuit qubit measurement and rearrangement in a $^{171}$Yb atomic array Norcia, M. A. Cairncross, W. B. Barnes, K. Battaglino, P. Brown, A. Brown, M. O. Cassella, K. Chen, C. -A. Coxe, R. Crow, D. Epstein, J. Griger, C. Jones, A. M. W. Kim, H. Kindem, J. M. King, J. Kondov, S. S. Kotru, K. Lauigan, J. Li, M. Lu, M. Megidish, E. Marjanovic, J. McDonald, M. Mittiga, T. Muniz, J. A. Narayanaswami, S. Nishiguchi, C. Notermans, R. Paule, T. Pawlak, K. Peng, L. Ryou, A. Smull, A. Stack, D. Stone, M. Sucich, A. Urbanek, M. van de Veerdonk, R. Vendeiro, Z. Wilkason, T. Wu, T. -Y. Xie, X. Zhang, X. Bloom, B. J. Quantum Physics Atomic Physics Measurement-based quantum error correction relies on the ability to determine the state of a subset of qubits (ancillae) within a processor without revealing or disturbing the state of the remaining qubits. Among neutral-atom based platforms, a scalable, high-fidelity approach to mid-circuit measurement that retains the ancilla qubits in a state suitable for future operations has not yet been demonstrated. In this work, we perform imaging using a narrow-linewidth transition in an array of tweezer-confined $^{171}$Yb atoms to demonstrate nondestructive state-selective and site-selective detection. By applying site-specific light shifts, selected atoms within the array can be hidden from imaging light, which allows a subset of qubits to be measured while causing only percent-level errors on the remaining qubits. As a proof-of-principle demonstration of conditional operations based on the results of the mid-circuit measurements, and of our ability to reuse ancilla qubits, we perform conditional refilling of ancilla sites to correct for occasional atom loss, while maintaining the coherence of data qubits. Looking towards true continuous operation, we demonstrate loading of a magneto-optical trap with a minimal degree of qubit decoherence.
title	Mid-circuit qubit measurement and rearrangement in a $^{171}$Yb atomic array
topic	Quantum Physics Atomic Physics
url	https://arxiv.org/abs/2305.19119