159 citations · 1.3k across the 24 of their papers we have counts for
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cond-mat.supr-con2012★ 64 cited
Tunable coupling to a mechanical oscillator circuit using a coherent feedback network
Joseph Kerckhoff, Reed W. Andrews, H. S. Ku +4
We demonstrate a fully cryogenic microwave feedback network composed of modular superconducting devices connected by transmission lines and designed to control a mechanical oscilla…
cond-mat.supr-con2012★ 35 cited
A superconducting microwave multivibrator produced by coherent feedback
Joseph Kerckhoff, K. W. Lehnert
We investigate a coherent nonlinear feedback circuit constructed from pre-existing superconducting microwave devices. The network exhibits emergent bistable and astable states, and…