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Journal Article

Microwave Quantum Acoustic Processor

We propose an architecture for microwave quantum information processing based on high-Q microwave mechanical resonators coupled to a superconducting qubit. Detailed calculations of the error budget show that there is a trade-off between cross-talk and amplitude damping that leads to an optimal value of g on the order of 10 MHz. Obtaining such g's in a nanomechanical systems requires a material with a large piezoelectric coefficient and hence we fabricate our resonators from thin-film lithium niobate (LN). We demonstrate a fabricated device integrating a superconducting qubit with LN nanomechanical resonators as a first step to microwave superconducting qubits.
Patricio Arrangoiz-Arriola
Alex E. Wollack
Marek Pechal
Wentao Jiang
Zhaoyou Wang
Timothy P. McKenna
Jeremy Witmer
Raphael Van Laer
Agnetta Cleland
Nathan Lee
Christopher J. Sarabalis
Pieter-Jan Stas
Amir H. Safavi-Naeini
Journal Name
2019 IEEE MTT-S International Microwave Symposium (IMS)
Publication Date
June 2, 2019