Reprogrammable and high-precision holographic optical addressing of trapped ions for scalable quantum control

Abstract High-precision, individually programmable manipulation of quantum particles is crucial for scaling up quantum information processing (QIP) systems such as laser-cooled trapped-ions. However, restricting undesirable “crosstalk” in optical manipulation of ion qubits is fundamentally challengi...

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Autores principales:	Chung-You Shih, Sainath Motlakunta, Nikhil Kotibhaskar, Manas Sajjan, Roland Hablützel, Rajibul Islam
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
Acceso en línea:	https://doaj.org/article/27c99214c1ed4242973196eb0db746c9
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spelling	oai:doaj.org-article:27c99214c1ed4242973196eb0db746c92021-12-02T18:15:36ZReprogrammable and high-precision holographic optical addressing of trapped ions for scalable quantum control10.1038/s41534-021-00396-02056-6387https://doaj.org/article/27c99214c1ed4242973196eb0db746c92021-04-01T00:00:00Zhttps://doi.org/10.1038/s41534-021-00396-0https://doaj.org/toc/2056-6387Abstract High-precision, individually programmable manipulation of quantum particles is crucial for scaling up quantum information processing (QIP) systems such as laser-cooled trapped-ions. However, restricting undesirable “crosstalk” in optical manipulation of ion qubits is fundamentally challenging due to micron-level inter-ion separation. Further, inhomogeneous ion spacing and high susceptibility to aberrations at UV wavelengths suitable for most ion-species pose severe challenges. Here, we demonstrate high-precision individual addressing (λ = 369.5 nm) of Yb+ using a reprogrammable Fourier hologram. The precision is achieved through in-situ aberration characterization via the trapped ion, and compensating (to λ/20) with the hologram. Using an iterative Fourier transformation algorithm (IFTA), we demonstrate an ultra-low (<10−4) intensity crosstalk error in creating arbitrary pair-wise addressing profiles, suitable for over fifty ions. This scheme relies on standard commercial hardware, can be readily extended to over a hundred ions, and adapted to other ion-species and quantum platforms.Chung-You ShihSainath MotlakuntaNikhil KotibhaskarManas SajjanRoland HablützelRajibul IslamNature PortfolioarticlePhysicsQC1-999Electronic computers. Computer scienceQA75.5-76.95ENnpj Quantum Information, Vol 7, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
spellingShingle	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95 Chung-You Shih Sainath Motlakunta Nikhil Kotibhaskar Manas Sajjan Roland Hablützel Rajibul Islam Reprogrammable and high-precision holographic optical addressing of trapped ions for scalable quantum control
description	Abstract High-precision, individually programmable manipulation of quantum particles is crucial for scaling up quantum information processing (QIP) systems such as laser-cooled trapped-ions. However, restricting undesirable “crosstalk” in optical manipulation of ion qubits is fundamentally challenging due to micron-level inter-ion separation. Further, inhomogeneous ion spacing and high susceptibility to aberrations at UV wavelengths suitable for most ion-species pose severe challenges. Here, we demonstrate high-precision individual addressing (λ = 369.5 nm) of Yb+ using a reprogrammable Fourier hologram. The precision is achieved through in-situ aberration characterization via the trapped ion, and compensating (to λ/20) with the hologram. Using an iterative Fourier transformation algorithm (IFTA), we demonstrate an ultra-low (<10−4) intensity crosstalk error in creating arbitrary pair-wise addressing profiles, suitable for over fifty ions. This scheme relies on standard commercial hardware, can be readily extended to over a hundred ions, and adapted to other ion-species and quantum platforms.
format	article
author	Chung-You Shih Sainath Motlakunta Nikhil Kotibhaskar Manas Sajjan Roland Hablützel Rajibul Islam
author_facet	Chung-You Shih Sainath Motlakunta Nikhil Kotibhaskar Manas Sajjan Roland Hablützel Rajibul Islam
author_sort	Chung-You Shih
title	Reprogrammable and high-precision holographic optical addressing of trapped ions for scalable quantum control
title_short	Reprogrammable and high-precision holographic optical addressing of trapped ions for scalable quantum control
title_full	Reprogrammable and high-precision holographic optical addressing of trapped ions for scalable quantum control
title_fullStr	Reprogrammable and high-precision holographic optical addressing of trapped ions for scalable quantum control
title_full_unstemmed	Reprogrammable and high-precision holographic optical addressing of trapped ions for scalable quantum control
title_sort	reprogrammable and high-precision holographic optical addressing of trapped ions for scalable quantum control
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/27c99214c1ed4242973196eb0db746c9
work_keys_str_mv	AT chungyoushih reprogrammableandhighprecisionholographicopticaladdressingoftrappedionsforscalablequantumcontrol AT sainathmotlakunta reprogrammableandhighprecisionholographicopticaladdressingoftrappedionsforscalablequantumcontrol AT nikhilkotibhaskar reprogrammableandhighprecisionholographicopticaladdressingoftrappedionsforscalablequantumcontrol AT manassajjan reprogrammableandhighprecisionholographicopticaladdressingoftrappedionsforscalablequantumcontrol AT rolandhablutzel reprogrammableandhighprecisionholographicopticaladdressingoftrappedionsforscalablequantumcontrol AT rajibulislam reprogrammableandhighprecisionholographicopticaladdressingoftrappedionsforscalablequantumcontrol
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Reprogrammable and high-precision holographic optical addressing of trapped ions for scalable quantum control

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