Individually-addressed quantum gate interactions using dynamical decoupling
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866909279962791936 |
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| author | Smith, M. C. Leu, A. D. Gely, M. F. Lucas, D. M. |
| author_facet | Smith, M. C. Leu, A. D. Gely, M. F. Lucas, D. M. |
| contents | A leading approach to implementing small-scale quantum computers has been to use laser beams, focused to micron spot sizes, to address and entangle trapped ions in a linear crystal. Here we propose a method to implement individually-addressed entangling gate interactions, but driven by microwave fields, with a spatial-resolution of a few microns, corresponding to $10^{-5}$ microwave wavelengths. We experimentally demonstrate the ability to suppress the effect of the state-dependent force using a single ion, and find the required interaction introduces $3.7(4)\times 10^{-4}$ error per emulated gate in a single-qubit benchmarking sequence. We model the scheme for a 17-qubit ion crystal, and find that any pair of ions should be addressable with an average crosstalk error of $\sim 10^{-5}$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2309_02125 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Individually-addressed quantum gate interactions using dynamical decoupling Smith, M. C. Leu, A. D. Gely, M. F. Lucas, D. M. Quantum Physics A leading approach to implementing small-scale quantum computers has been to use laser beams, focused to micron spot sizes, to address and entangle trapped ions in a linear crystal. Here we propose a method to implement individually-addressed entangling gate interactions, but driven by microwave fields, with a spatial-resolution of a few microns, corresponding to $10^{-5}$ microwave wavelengths. We experimentally demonstrate the ability to suppress the effect of the state-dependent force using a single ion, and find the required interaction introduces $3.7(4)\times 10^{-4}$ error per emulated gate in a single-qubit benchmarking sequence. We model the scheme for a 17-qubit ion crystal, and find that any pair of ions should be addressable with an average crosstalk error of $\sim 10^{-5}$. |
| title | Individually-addressed quantum gate interactions using dynamical decoupling |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2309.02125 |