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| Main Authors: | , , , , , , , , , , , |
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| Format: | Preprint |
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2020
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2009.02892 |
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| _version_ | 1866909417649209344 |
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| author | Jakob, Alexander M. Robson, Simon G. Schmitt, Vivien Mourik, Vincent Posselt, Matthias Spemann, Daniel Johnson, Brett C. Firgau, Hannes R. Mayes, Edwin McCallum, Jeffrey C. Morello, Andrea Jamieson, David N. |
| author_facet | Jakob, Alexander M. Robson, Simon G. Schmitt, Vivien Mourik, Vincent Posselt, Matthias Spemann, Daniel Johnson, Brett C. Firgau, Hannes R. Mayes, Edwin McCallum, Jeffrey C. Morello, Andrea Jamieson, David N. |
| contents | The attributes of group-V-donor spins implanted in an isotopically purified $^{28}$Si crystal make them attractive qubits for large-scale quantum computer devices. Important features include long nuclear and electron spin lifetimes of $^{31}$P, hyperfine clock transitions in $^{209}$Bi and electrically controllable $^{123}$Sb nuclear spins. However, architectures for scalable quantum devices require the ability to fabricate deterministic arrays of individual donor atoms, placed with sufficient precision to enable high-fidelity quantum operations. Here we employ on-chip electrodes with charge-sensitive electronics to demonstrate the implantation of single low-energy (14 keV) P$^+$ ions with an unprecedented $99.87\pm0.02$% confidence, while operating close to room-temperature. This permits integration with an atomic force microscope equipped with a scanning-probe ion aperture to address the critical issue of directing the implanted ions to precise locations. These results show that deterministic single-ion implantation can be a viable pathway for manufacturing large-scale donor arrays for quantum computation and other applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2009_02892 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | Deterministic Single Ion Implantation with 99.87% Confidence for Scalable Donor-Qubit Arrays in Silicon Jakob, Alexander M. Robson, Simon G. Schmitt, Vivien Mourik, Vincent Posselt, Matthias Spemann, Daniel Johnson, Brett C. Firgau, Hannes R. Mayes, Edwin McCallum, Jeffrey C. Morello, Andrea Jamieson, David N. Mesoscale and Nanoscale Physics Instrumentation and Detectors Quantum Physics The attributes of group-V-donor spins implanted in an isotopically purified $^{28}$Si crystal make them attractive qubits for large-scale quantum computer devices. Important features include long nuclear and electron spin lifetimes of $^{31}$P, hyperfine clock transitions in $^{209}$Bi and electrically controllable $^{123}$Sb nuclear spins. However, architectures for scalable quantum devices require the ability to fabricate deterministic arrays of individual donor atoms, placed with sufficient precision to enable high-fidelity quantum operations. Here we employ on-chip electrodes with charge-sensitive electronics to demonstrate the implantation of single low-energy (14 keV) P$^+$ ions with an unprecedented $99.87\pm0.02$% confidence, while operating close to room-temperature. This permits integration with an atomic force microscope equipped with a scanning-probe ion aperture to address the critical issue of directing the implanted ions to precise locations. These results show that deterministic single-ion implantation can be a viable pathway for manufacturing large-scale donor arrays for quantum computation and other applications. |
| title | Deterministic Single Ion Implantation with 99.87% Confidence for Scalable Donor-Qubit Arrays in Silicon |
| topic | Mesoscale and Nanoscale Physics Instrumentation and Detectors Quantum Physics |
| url | https://arxiv.org/abs/2009.02892 |