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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2509.07900 |
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| _version_ | 1866918138257342464 |
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| author | Hu, Yang Gupta, Angad Repicky, Jacob Hatridge, Michael Purdy, Thomas P. |
| author_facet | Hu, Yang Gupta, Angad Repicky, Jacob Hatridge, Michael Purdy, Thomas P. |
| contents | Circuit quantum acoustodynamics systems have emerged as a promising platform for quantum information by coupling superconducting qubits to mechanical resonators, with their long-lived mechanical modes serving as quantum memories. We demonstrate suspended quartz phononic crystal resonators at 100 MHz with millisecond lifetimes at 8 K. With a contactless electrode geometry suppressing both two-level system losses and other electrode-induced energy dissipation, we evaluate the piezoelectric coupling rate between the mechanical modes and fluxonium qubits (resonant coupling) and transmon qubits (parametric coupling mediated by a Josephon-junction-based three-wave mixer). We further discuss multi-period defect geometries for enhancing these coupling rates. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_07900 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quartz phononic crystal resonators for hybrid acoustic quantum memories Hu, Yang Gupta, Angad Repicky, Jacob Hatridge, Michael Purdy, Thomas P. Quantum Physics Circuit quantum acoustodynamics systems have emerged as a promising platform for quantum information by coupling superconducting qubits to mechanical resonators, with their long-lived mechanical modes serving as quantum memories. We demonstrate suspended quartz phononic crystal resonators at 100 MHz with millisecond lifetimes at 8 K. With a contactless electrode geometry suppressing both two-level system losses and other electrode-induced energy dissipation, we evaluate the piezoelectric coupling rate between the mechanical modes and fluxonium qubits (resonant coupling) and transmon qubits (parametric coupling mediated by a Josephon-junction-based three-wave mixer). We further discuss multi-period defect geometries for enhancing these coupling rates. |
| title | Quartz phononic crystal resonators for hybrid acoustic quantum memories |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2509.07900 |