Robust and Deterministic Preparation of Bosonic Logical States in a Trapped Ion
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arXiv
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| Format: | Preprint |
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2023
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| author | Matsos, V. G. Valahu, C. H. Navickas, T. Rao, A. D. Millican, M. J. Kolesnikow, X. C. Biercuk, M. J. Tan, T. R. |
| author_facet | Matsos, V. G. Valahu, C. H. Navickas, T. Rao, A. D. Millican, M. J. Kolesnikow, X. C. Biercuk, M. J. Tan, T. R. |
| contents | Encoding logical qubits in bosonic modes provides a potentially hardware-efficient implementation of fault-tolerant quantum information processing. Here, we demonstrate high-fidelity and deterministic preparation of highly non-classical bosonic states in the mechanical motion of a trapped ion. Our approach implements error-suppressing pulses through optimized dynamical modulation of laser-driven spin-motion interactions to generate the target state in a single step. We demonstrate logical fidelities for the Gottesman-Kitaev-Preskill (GKP) state as high as $\bar{\mathcal{F}}=0.940(8)$, a distance-3 binomial state with an average fidelity of $\mathcal{F}=0.807(7)$, and a 12.91(5) dB squeezed vacuum state. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_15546 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Robust and Deterministic Preparation of Bosonic Logical States in a Trapped Ion Matsos, V. G. Valahu, C. H. Navickas, T. Rao, A. D. Millican, M. J. Kolesnikow, X. C. Biercuk, M. J. Tan, T. R. Quantum Physics Encoding logical qubits in bosonic modes provides a potentially hardware-efficient implementation of fault-tolerant quantum information processing. Here, we demonstrate high-fidelity and deterministic preparation of highly non-classical bosonic states in the mechanical motion of a trapped ion. Our approach implements error-suppressing pulses through optimized dynamical modulation of laser-driven spin-motion interactions to generate the target state in a single step. We demonstrate logical fidelities for the Gottesman-Kitaev-Preskill (GKP) state as high as $\bar{\mathcal{F}}=0.940(8)$, a distance-3 binomial state with an average fidelity of $\mathcal{F}=0.807(7)$, and a 12.91(5) dB squeezed vacuum state. |
| title | Robust and Deterministic Preparation of Bosonic Logical States in a Trapped Ion |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2310.15546 |