Fast three-qubit Toffoli quantum gate based on three-body Förster resonances in Rydberg atoms

I. I. Beterov; I. N. Ashkarin; E. A. Yakshina; D. B. Tretyakov; V. M. Entin; I. I. Ryabtsev; P. Cheinet; P. Pillet; M. Saffman

doi:10.1103/PhysRevA.98.042704

Fast three-qubit Toffoli quantum gate based on three-body Förster resonances in Rydberg atoms

I. I. Beterov, I. N. Ashkarin, E. A. Yakshina, D. B. Tretyakov, V. M. Entin, I. I. Ryabtsev, P. Cheinet, P. Pillet, M. Saffman

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

15 Цитирования (Scopus)

Аннотация

We propose a scheme of fast three-qubit Toffoli quantum gate for ultracold neutral-atom qubits. The scheme is based on Stark-tuned three-body Förster resonances, which we have observed in our recent experiment [D. B. Tretyakov, Phys. Rev. Lett. 119, 173402 (2017)PRLTAO0031-900710.1103/PhysRevLett.119.173402]. The three-body resonance corresponds to a transition when the three interacting atoms change their states simultaneously, and it occurs at a different dc electric field with respect to the two-body Förster resonance. A combined effect of three-body and two-body Förster interactions in external electric and magnetic fields near the three-body resonance results in complex coherent behavior of the populations and phases of collective states of a three-atom system. We have found that it is possible to obtain experimental conditions suitable to implement three-qubit Toffoli gate with 98.3% fidelity and less than 3 μs duration.

Язык оригинала	английский
Номер статьи	042704
Число страниц	7
Журнал	Physical Review A
Том	98
Номер выпуска	4
DOI	https://doi.org/10.1103/PhysRevA.98.042704
Состояние	Опубликовано - 17 окт 2018

Доступ к документу

10.1103/PhysRevA.98.042704

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abstract = "We propose a scheme of fast three-qubit Toffoli quantum gate for ultracold neutral-atom qubits. The scheme is based on Stark-tuned three-body F{\"o}rster resonances, which we have observed in our recent experiment [D. B. Tretyakov, Phys. Rev. Lett. 119, 173402 (2017)PRLTAO0031-900710.1103/PhysRevLett.119.173402]. The three-body resonance corresponds to a transition when the three interacting atoms change their states simultaneously, and it occurs at a different dc electric field with respect to the two-body F{\"o}rster resonance. A combined effect of three-body and two-body F{\"o}rster interactions in external electric and magnetic fields near the three-body resonance results in complex coherent behavior of the populations and phases of collective states of a three-atom system. We have found that it is possible to obtain experimental conditions suitable to implement three-qubit Toffoli gate with 98.3% fidelity and less than 3 μs duration.",

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Fast three-qubit Toffoli quantum gate based on three-body Förster resonances in Rydberg atoms. / Beterov, I. I.; Ashkarin, I. N.; Yakshina, E. A.; Tretyakov, D. B.; Entin, V. M.; Ryabtsev, I. I.; Cheinet, P.; Pillet, P.; Saffman, M.

В: Physical Review A, Том 98, № 4, 042704, 17.10.2018.

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

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AU - Yakshina, E. A.

AU - Tretyakov, D. B.

AU - Entin, V. M.

AU - Ryabtsev, I. I.

AU - Cheinet, P.

AU - Pillet, P.

AU - Saffman, M.

PY - 2018/10/17

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N2 - We propose a scheme of fast three-qubit Toffoli quantum gate for ultracold neutral-atom qubits. The scheme is based on Stark-tuned three-body Förster resonances, which we have observed in our recent experiment [D. B. Tretyakov, Phys. Rev. Lett. 119, 173402 (2017)PRLTAO0031-900710.1103/PhysRevLett.119.173402]. The three-body resonance corresponds to a transition when the three interacting atoms change their states simultaneously, and it occurs at a different dc electric field with respect to the two-body Förster resonance. A combined effect of three-body and two-body Förster interactions in external electric and magnetic fields near the three-body resonance results in complex coherent behavior of the populations and phases of collective states of a three-atom system. We have found that it is possible to obtain experimental conditions suitable to implement three-qubit Toffoli gate with 98.3% fidelity and less than 3 μs duration.

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