Implementation of Single-Qubit Quantum Gates Based on a Microwave Transition in a Single Rubidium Atom in an Optical Dipole Trap

I. I. Beterov; E. A. Yakshina; D. B. Tretyakov; V. M. Entin; N. V. Al’yanova; K. Yu Mityanin; I. I. Ryabtsev

doi:10.1134/S1063776121030134

Implementation of Single-Qubit Quantum Gates Based on a Microwave Transition in a Single Rubidium Atom in an Optical Dipole Trap

Переведенное название: Реализация однокубитовых квантовых операций на СВЧ-переходе в одиночном атоме рубидия в оптической дипольной ловушке

I. I. Beterov, E. A. Yakshina, D. B. Tretyakov, V. M. Entin, N. V. Al’yanova, K. Yu Mityanin, I. I. Ryabtsev

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

2 Цитирования (Scopus)

Аннотация

Представлены результаты экспериментов по реализации однокубитовых квантовых операций с одиночным атомом 87Rb в оптической дипольной ловушке с длиной волны 850 нм. Ловушка сформирована длиннофокусным объективом, расположенным снаружи вакуумной камеры магнитооптической ловушки. Регистрация атома осуществлялась по сигналу резонансной флуоресценции с помощью sCMOS-видеокамеры. В экспериментах были реализованы захват и удержание одиночного атома на временах до 50 с, оптическая накачка поляризованным лазерным излучением, СВЧ-переходы между двумя сверхтонкими подуровнями основного состояния и измерение квантового состояния атома методом выталкивания из ловушки.Получены осцилляции Раби на «часовом» СВЧ-переходе 5S1/2(F = 2, MF = 0) → 5S1/2(F = 1, MF = 0)между двумя рабочими уровнями кубита с частотой до 4.2 кГц, контрастом до 95 % и временем когерентности до 3 мс. Данные осцилляции соответствуют реализации двух базовых однокубитовых квантовыхопераций (вентиля Адамара и вентиля NOT) из различных начальных состояний кубита со средней точностью 95.2 ± 3%.

Переведенное название	Реализация однокубитовых квантовых операций на СВЧ-переходе в одиночном атоме рубидия в оптической дипольной ловушке
Язык оригинала	английский
Номер статьи	3
Страницы (с-по)	341-353
Число страниц	13
Журнал	Journal of Experimental and Theoretical Physics
Том	132
Номер выпуска	3
DOI	https://doi.org/10.1134/S1063776121030134
Состояние	Опубликовано - мар. 2021

Предметные области OECD FOS+WOS

1.03 ФИЗИЧЕСКИЕ НАУКИ И АСТРОНОМИЯ
1.03.UI ФИЗИКА, МУЛЬТИДИСЦИПЛИНАРНАЯ

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29 ФИЗИКА

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Beterov, I. I., Yakshina, E. A., Tretyakov, D. B., Entin, V. M., Al’yanova, N. V., Mityanin, K. Y., & Ryabtsev, I. I. (2021). Implementation of Single-Qubit Quantum Gates Based on a Microwave Transition in a Single Rubidium Atom in an Optical Dipole Trap. Journal of Experimental and Theoretical Physics, 132(3), 341-353. [3]. https://doi.org/10.1134/S1063776121030134

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title = "Implementation of Single-Qubit Quantum Gates Based on a Microwave Transition in a Single Rubidium Atom in an Optical Dipole Trap",

abstract = "The results of experiments on the implementation of single-qubit quantum gates with a single 87Rb atom in an optical dipole trap with a wavelength of 850 nm are presented. The trap is formed by a long focal-length objective lens located outside the vacuum chamber of a magneto-optical trap. An atom is detected using a resonance fluorescence signal with an sCMOS video camera. The experiments involved the trapping and confinement of a single atom at times up to 50 s, optical pumping by polarized laser radiation, microwave transitions between two hyperfine sublevels of the ground state, and the measurement of the quantum state of the atom by pushing it from the trap. Rabi oscillations are observed during the “clock” microwave transition 5S1/2(F = 2, MF = 0) → 5S1/2(F = 1, MF = 0) between two operating qubit levels at a frequency of up to 4.2 kHz, a contrast of up to 95%, and a coherence time of up to 3 ms. These oscillations correspond to the implementation of two basic single-qubit quantum operations (Hadamard gate, NOT gate) from various initial qubit states with an average fidelity of 95.2 ± 3%.",

author = "Beterov, {I. I.} and Yakshina, {E. A.} and Tretyakov, {D. B.} and Entin, {V. M.} and Al{\textquoteright}yanova, {N. V.} and Mityanin, {K. Yu} and Ryabtsev, {I. I.}",

note = "Funding Information: The work was supported by the Russian Foundation for Basic Research (project no. 19-52-15010) (in terms of the theory of quantum informatics), the Russian Science Foundation (project no. 18-12-00313) (in terms of experimental implementation of quantum operations), the Foundation for Advanced Research (in terms of creating the experimental installation), and Novosibirsk State University. Publisher Copyright: {\textcopyright} 2021, Pleiades Publishing, Inc. Copyright: Copyright 2021 Elsevier B.V., All rights reserved. The work was supported by the Russian Foundation for Basic Research (project no. 19-52-15010) (in terms of the theory of quantum informatics), the Russian Science Foundation (project no. 18-12-00313) (in terms of experimental implementation of quantum operations), the Foundation for Advanced Research (in terms of creating the experimental installation), and Novosibirsk State University.",

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Implementation of Single-Qubit Quantum Gates Based on a Microwave Transition in a Single Rubidium Atom in an Optical Dipole Trap. / Beterov, I. I.; Yakshina, E. A.; Tretyakov, D. B. и др.

В: Journal of Experimental and Theoretical Physics, Том 132, № 3, 3, 03.2021, стр. 341-353.

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

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AU - Beterov, I. I.

AU - Yakshina, E. A.

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AU - Entin, V. M.

AU - Al’yanova, N. V.

AU - Mityanin, K. Yu

AU - Ryabtsev, I. I.

N1 - Funding Information: The work was supported by the Russian Foundation for Basic Research (project no. 19-52-15010) (in terms of the theory of quantum informatics), the Russian Science Foundation (project no. 18-12-00313) (in terms of experimental implementation of quantum operations), the Foundation for Advanced Research (in terms of creating the experimental installation), and Novosibirsk State University. Publisher Copyright: © 2021, Pleiades Publishing, Inc. Copyright: Copyright 2021 Elsevier B.V., All rights reserved. The work was supported by the Russian Foundation for Basic Research (project no. 19-52-15010) (in terms of the theory of quantum informatics), the Russian Science Foundation (project no. 18-12-00313) (in terms of experimental implementation of quantum operations), the Foundation for Advanced Research (in terms of creating the experimental installation), and Novosibirsk State University.

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N2 - The results of experiments on the implementation of single-qubit quantum gates with a single 87Rb atom in an optical dipole trap with a wavelength of 850 nm are presented. The trap is formed by a long focal-length objective lens located outside the vacuum chamber of a magneto-optical trap. An atom is detected using a resonance fluorescence signal with an sCMOS video camera. The experiments involved the trapping and confinement of a single atom at times up to 50 s, optical pumping by polarized laser radiation, microwave transitions between two hyperfine sublevels of the ground state, and the measurement of the quantum state of the atom by pushing it from the trap. Rabi oscillations are observed during the “clock” microwave transition 5S1/2(F = 2, MF = 0) → 5S1/2(F = 1, MF = 0) between two operating qubit levels at a frequency of up to 4.2 kHz, a contrast of up to 95%, and a coherence time of up to 3 ms. These oscillations correspond to the implementation of two basic single-qubit quantum operations (Hadamard gate, NOT gate) from various initial qubit states with an average fidelity of 95.2 ± 3%.

AB - The results of experiments on the implementation of single-qubit quantum gates with a single 87Rb atom in an optical dipole trap with a wavelength of 850 nm are presented. The trap is formed by a long focal-length objective lens located outside the vacuum chamber of a magneto-optical trap. An atom is detected using a resonance fluorescence signal with an sCMOS video camera. The experiments involved the trapping and confinement of a single atom at times up to 50 s, optical pumping by polarized laser radiation, microwave transitions between two hyperfine sublevels of the ground state, and the measurement of the quantum state of the atom by pushing it from the trap. Rabi oscillations are observed during the “clock” microwave transition 5S1/2(F = 2, MF = 0) → 5S1/2(F = 1, MF = 0) between two operating qubit levels at a frequency of up to 4.2 kHz, a contrast of up to 95%, and a coherence time of up to 3 ms. These oscillations correspond to the implementation of two basic single-qubit quantum operations (Hadamard gate, NOT gate) from various initial qubit states with an average fidelity of 95.2 ± 3%.

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