Flexible Integration of Gigahertz Nanomechanical Resonators with a Superconducting Microwave Resonator using a Bonded Flip-Chip Method

• URL: http://arxiv.org/abs/2304.13592v1
• Date: Wed, 26 Apr 2023 14:39:37 GMT
• Title: Flexible Integration of Gigahertz Nanomechanical Resonators with a Superconducting Microwave Resonator using a Bonded Flip-Chip Method
• Authors: Sultan Malik, Wentao Jiang, Felix M. Mayor, Takuma Makihara, Amir H. Safavi-Naeini
• Abstract summary: We demonstrate strong coupling of gigahertz- nanofrequency resonators to a frequency-tunable superconducting microwave resonator via a galvanically bonded flip-chip method. Our work represents a step towards a plug-and-play architecture for building more complex hybrid quantum systems.
• Score: 1.9999259391104391
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We demonstrate strong coupling of gigahertz-frequency nanomechanical resonators to a frequency-tunable superconducting microwave resonator via a galvanically bonded flip-chip method. By tuning the microwave resonator with an external magnetic field, we observe a series of hybridized microwave-mechanical modes and report coupling strengths of $\sim {15}~\text{MHz}$ at cryogenic temperatures. The demonstrated multi-chip approach provides flexible rapid characterization and simplified fabrication, and could potentially enable coupling between a variety of quantum systems. Our work represents a step towards a plug-and-play architecture for building more complex hybrid quantum systems.

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