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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2512.05037 |
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| _version_ | 1866914180065394688 |
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| author | Ildefonso, Pedro Byun, Andrew Konovalov, Aleksei Kazemi, Javad Schuler, Michael Lechner, Wolfgang |
| author_facet | Ildefonso, Pedro Byun, Andrew Konovalov, Aleksei Kazemi, Javad Schuler, Michael Lechner, Wolfgang |
| contents | We present a native realization of iSWAP and parameterized exchange gates for neutral atom quantum processing units. Our approach leverages strong dipole-dipole interactions between two dipole-coupled Rydberg states, and employs optimal control techniques to design time-efficient, high-fidelity gate protocols. To minimize experimental complexity, we utilize global driving terms acting identically on all atoms. We implement a noise-aware pulse selection strategy to identify candidate protocols with reduced susceptibility to certain noise sources, then analyze their performance under realistic noise sources -- including atomic motion, Rydberg decay, and experimentally motivated laser phase and intensity noise. For a $^{88}$Sr-based architecture, we demonstrate fast iSWAP gate protocols which exceed fidelities of $99.9\%$ under realistic experimental conditions. These results pave the way for expanding the neutral atom gate set beyond typical Rydberg blockade-based entangling gates. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_05037 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Expanding the Neutral Atom Gate Set: Native iSWAP and Exchange Gates from Dipolar Rydberg Interactions Ildefonso, Pedro Byun, Andrew Konovalov, Aleksei Kazemi, Javad Schuler, Michael Lechner, Wolfgang Quantum Physics We present a native realization of iSWAP and parameterized exchange gates for neutral atom quantum processing units. Our approach leverages strong dipole-dipole interactions between two dipole-coupled Rydberg states, and employs optimal control techniques to design time-efficient, high-fidelity gate protocols. To minimize experimental complexity, we utilize global driving terms acting identically on all atoms. We implement a noise-aware pulse selection strategy to identify candidate protocols with reduced susceptibility to certain noise sources, then analyze their performance under realistic noise sources -- including atomic motion, Rydberg decay, and experimentally motivated laser phase and intensity noise. For a $^{88}$Sr-based architecture, we demonstrate fast iSWAP gate protocols which exceed fidelities of $99.9\%$ under realistic experimental conditions. These results pave the way for expanding the neutral atom gate set beyond typical Rydberg blockade-based entangling gates. |
| title | Expanding the Neutral Atom Gate Set: Native iSWAP and Exchange Gates from Dipolar Rydberg Interactions |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2512.05037 |