Closed-loop optimization of fast trapped-ion shuttling with sub-quanta excitation
Abstract Shuttling ions at high speed and with low motional excitation is essential for realizing fast and high-fidelity algorithms in many trapped-ion-based quantum computing architectures. Achieving such performance is challenging due to the sensitivity of an ion to electric fields and the unknown...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-06-01
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| Series: | npj Quantum Information |
| Online Access: | https://doi.org/10.1038/s41534-022-00579-3 |
| _version_ | 1811227221283569664 |
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| author | Jonathan D. Sterk Henry Coakley Joshua Goldberg Vincent Hietala Jason Lechtenberg Hayden McGuinness Daniel McMurtrey L. Paul Parazzoli Jay Van Der Wall Daniel Stick |
| author_facet | Jonathan D. Sterk Henry Coakley Joshua Goldberg Vincent Hietala Jason Lechtenberg Hayden McGuinness Daniel McMurtrey L. Paul Parazzoli Jay Van Der Wall Daniel Stick |
| author_sort | Jonathan D. Sterk |
| collection | DOAJ |
| description | Abstract Shuttling ions at high speed and with low motional excitation is essential for realizing fast and high-fidelity algorithms in many trapped-ion-based quantum computing architectures. Achieving such performance is challenging due to the sensitivity of an ion to electric fields and the unknown and imperfect environmental and control variables that create them. Here we implement a closed-loop optimization of the voltage waveforms that control the trajectory and axial frequency of an ion during transport in order to minimize the final motional excitation. The resulting waveforms realize fast round-trip transport of a trapped ion across multiple electrodes at speeds of 0.5 electrodes per microsecond (35 m·s−1 for a one-way transport of 210 μm in 6 μs) with a maximum of 0.36 ± 0.08 mean quanta gain. This sub-quanta gain is independent of the phase of the secular motion at the distal location, obviating the need for an electric field impulse or time delay to eliminate the coherent motion. |
| first_indexed | 2024-04-12T09:37:54Z |
| format | Article |
| id | doaj.art-781ae77e20f046afb74ef720fec873b2 |
| institution | Directory Open Access Journal |
| issn | 2056-6387 |
| language | English |
| last_indexed | 2024-04-12T09:37:54Z |
| publishDate | 2022-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Information |
| spelling | doaj.art-781ae77e20f046afb74ef720fec873b22022-12-22T03:38:10ZengNature Portfolionpj Quantum Information2056-63872022-06-01811610.1038/s41534-022-00579-3Closed-loop optimization of fast trapped-ion shuttling with sub-quanta excitationJonathan D. Sterk0Henry Coakley1Joshua Goldberg2Vincent Hietala3Jason Lechtenberg4Hayden McGuinness5Daniel McMurtrey6L. Paul Parazzoli7Jay Van Der Wall8Daniel Stick9Sandia National LaboratoriesSandia National LaboratoriesSandia National LaboratoriesSandia National LaboratoriesSandia National LaboratoriesSandia National LaboratoriesSandia National LaboratoriesSandia National LaboratoriesSandia National LaboratoriesSandia National LaboratoriesAbstract Shuttling ions at high speed and with low motional excitation is essential for realizing fast and high-fidelity algorithms in many trapped-ion-based quantum computing architectures. Achieving such performance is challenging due to the sensitivity of an ion to electric fields and the unknown and imperfect environmental and control variables that create them. Here we implement a closed-loop optimization of the voltage waveforms that control the trajectory and axial frequency of an ion during transport in order to minimize the final motional excitation. The resulting waveforms realize fast round-trip transport of a trapped ion across multiple electrodes at speeds of 0.5 electrodes per microsecond (35 m·s−1 for a one-way transport of 210 μm in 6 μs) with a maximum of 0.36 ± 0.08 mean quanta gain. This sub-quanta gain is independent of the phase of the secular motion at the distal location, obviating the need for an electric field impulse or time delay to eliminate the coherent motion.https://doi.org/10.1038/s41534-022-00579-3 |
| spellingShingle | Jonathan D. Sterk Henry Coakley Joshua Goldberg Vincent Hietala Jason Lechtenberg Hayden McGuinness Daniel McMurtrey L. Paul Parazzoli Jay Van Der Wall Daniel Stick Closed-loop optimization of fast trapped-ion shuttling with sub-quanta excitation npj Quantum Information |
| title | Closed-loop optimization of fast trapped-ion shuttling with sub-quanta excitation |
| title_full | Closed-loop optimization of fast trapped-ion shuttling with sub-quanta excitation |
| title_fullStr | Closed-loop optimization of fast trapped-ion shuttling with sub-quanta excitation |
| title_full_unstemmed | Closed-loop optimization of fast trapped-ion shuttling with sub-quanta excitation |
| title_short | Closed-loop optimization of fast trapped-ion shuttling with sub-quanta excitation |
| title_sort | closed loop optimization of fast trapped ion shuttling with sub quanta excitation |
| url | https://doi.org/10.1038/s41534-022-00579-3 |
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