A Nanomechanical Atomic Force Qubit
Fuente:
arXiv
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| Autores principales: | , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866913439879790592 |
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| author | Jahanbani, Shahin Zhang, Zi-Huai Hua, Binhan Godeneli, Kadircan Müllendorff, Boris Zhang, Xueyue Zhou, Haoxin Sipahigil, Alp |
| author_facet | Jahanbani, Shahin Zhang, Zi-Huai Hua, Binhan Godeneli, Kadircan Müllendorff, Boris Zhang, Xueyue Zhou, Haoxin Sipahigil, Alp |
| contents | Silicon nanomechanical resonators display ultra-long lifetimes at cryogenic temperatures and microwave frequencies. Achieving quantum control of single-phonons in these devices has so far relied on nonlinearities enabled by coupling to ancillary qubits. In this work, we propose using atomic forces to realize a silicon nanomechanical qubit without coupling to an ancillary qubit. The proposed qubit operates at 60 MHz with a single-phonon level anharmonicity of 5 MHz. We present a circuit quantum acoustodynamics architecture where electromechanical resonators enable dispersive state readout and multi-qubit operations. The combination of strong anharmonicity, ultrahigh mechanical quality factors, and small footprints achievable in this platform could enable quantum-nonlinear phononics for quantum information processing and transduction. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_15387 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A Nanomechanical Atomic Force Qubit Jahanbani, Shahin Zhang, Zi-Huai Hua, Binhan Godeneli, Kadircan Müllendorff, Boris Zhang, Xueyue Zhou, Haoxin Sipahigil, Alp Quantum Physics Mesoscale and Nanoscale Physics Silicon nanomechanical resonators display ultra-long lifetimes at cryogenic temperatures and microwave frequencies. Achieving quantum control of single-phonons in these devices has so far relied on nonlinearities enabled by coupling to ancillary qubits. In this work, we propose using atomic forces to realize a silicon nanomechanical qubit without coupling to an ancillary qubit. The proposed qubit operates at 60 MHz with a single-phonon level anharmonicity of 5 MHz. We present a circuit quantum acoustodynamics architecture where electromechanical resonators enable dispersive state readout and multi-qubit operations. The combination of strong anharmonicity, ultrahigh mechanical quality factors, and small footprints achievable in this platform could enable quantum-nonlinear phononics for quantum information processing and transduction. |
| title | A Nanomechanical Atomic Force Qubit |
| topic | Quantum Physics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2407.15387 |