arXiv:1211.1950 · Physical Review X

Tunable Coupling to a Mechanical Oscillator Circuit Using a Coherent Feedback Network

Joseph Kerckhoff, Reed W. Andrews, H. S. Ku, William Kindel, Katarina Cicak, Raymond W. Simmonds, Konrad W. Lehnert

Published Jun 5, 2013• 65 citations

Abstract

An innovative wiring of two familiar superconducting circuits, a microwave LC resonator containing a small mass on a spring and a microwave amplifier that measures the motion of the mass, feeds the output of the amplifier directly back to the first circuit, creating a quantum-devices-based network that can be continuously and dynamically tuned to optimize control and measurement capabilities.

DOI: 10.1103/physrevx.3.021013

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