Unified simulation methods for quantum acoustic devices
- URL: http://arxiv.org/abs/2301.05172v1
- Date: Thu, 12 Jan 2023 17:48:51 GMT
- Title: Unified simulation methods for quantum acoustic devices
- Authors: Hugo Banderier, Maxwell Drimmer, Yiwen Chu
- Abstract summary: In circuit quantum acoustodynamics (cQAD), superconducting circuits are combined with acoustic resonators to create and control non-classical states of mechanical motion.
Here, we demonstrate a single simulation of a superconducting qubit coupled to an acoustic and a microwave resonator.
We introduce two methods for using this simulation to predict the frequencies, coupling rates, and energy-participation ratios of the electromechanical modes of the hybrid system.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: In circuit quantum acoustodynamics (cQAD), superconducting circuits are
combined with acoustic resonators to create and control non-classical states of
mechanical motion. Simulating these systems is challenging due to the extreme
difference in scale between the microwave and mechanical wavelengths. All
existing techniques simulate the electromagnetic and mechanical subsystems
separately. However, this approach may not be adequate for all cQAD devices.
Here, we demonstrate a single simulation of a superconducting qubit coupled to
an acoustic and a microwave resonator and introduce two methods for using this
simulation to predict the frequencies, coupling rates, and energy-participation
ratios of the electromechanical modes of the hybrid system. We also discuss how
these methods can be used to investigate important dissipation channels and
quantify the nontrivial effects of mode hybridization in our device. Our
methodology is flexible and can be extended to other acoustic resonators and
quantum degrees of freedom, providing a valuable new tool for designing hybrid
quantum systems.
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