Circuit Quantum Acoustodynamics in a Scalable Phononic Integrated Circuit Architecture
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arXiv
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| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866914179977314304 |
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| author | Wang, Weiting Xiao, Lintao Zhang, Bo Zeng, Yu Hua, Ziyue Ma, Chuanlong Huang, Hongwei Xu, Yifang Wang, Jia-Qi Xue, Guangming Yu, Haifeng Xu, Xin-Biao Zou, Chang-Ling Sun, Luyan |
| author_facet | Wang, Weiting Xiao, Lintao Zhang, Bo Zeng, Yu Hua, Ziyue Ma, Chuanlong Huang, Hongwei Xu, Yifang Wang, Jia-Qi Xue, Guangming Yu, Haifeng Xu, Xin-Biao Zou, Chang-Ling Sun, Luyan |
| contents | Previous demonstrations of quantum acoustic systems have been limited to isolated devices, with limited capability to route phonons and interconnect multi-port acoustic elements for further extension. Here, we demonstrate a scalable architecture for circuit quantum acoustodynamics (cQAD) by integrating superconducting qubits with suspension-free phononic integrated circuits (PnICs). Coherent coupling between tunable transmon qubits and waveguide-integrated phononic cavities, including Fabry-Perot cavities via monolithic integration and microring cavities via flip-chip assembly, has been achieved, producing a pronounced enhancement of phonon emission with a Purcell factor of ~19. These devices represent elementary building blocks for scalable phononic circuits, establishing the foundation for phonon-based quantum information processors and the testbed for novel quantum acoustic phenomena. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_04953 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Circuit Quantum Acoustodynamics in a Scalable Phononic Integrated Circuit Architecture Wang, Weiting Xiao, Lintao Zhang, Bo Zeng, Yu Hua, Ziyue Ma, Chuanlong Huang, Hongwei Xu, Yifang Wang, Jia-Qi Xue, Guangming Yu, Haifeng Xu, Xin-Biao Zou, Chang-Ling Sun, Luyan Quantum Physics Previous demonstrations of quantum acoustic systems have been limited to isolated devices, with limited capability to route phonons and interconnect multi-port acoustic elements for further extension. Here, we demonstrate a scalable architecture for circuit quantum acoustodynamics (cQAD) by integrating superconducting qubits with suspension-free phononic integrated circuits (PnICs). Coherent coupling between tunable transmon qubits and waveguide-integrated phononic cavities, including Fabry-Perot cavities via monolithic integration and microring cavities via flip-chip assembly, has been achieved, producing a pronounced enhancement of phonon emission with a Purcell factor of ~19. These devices represent elementary building blocks for scalable phononic circuits, establishing the foundation for phonon-based quantum information processors and the testbed for novel quantum acoustic phenomena. |
| title | Circuit Quantum Acoustodynamics in a Scalable Phononic Integrated Circuit Architecture |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2512.04953 |