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Quantum metrology of low frequency electromagnetic modes with frequency upconverters
Stephen E. Kuenstner, Elizabeth C. van Assendelft, Saptarshi Chaudhuri +11
We present the RF Quantum Upconverter (RQU) and describe its application to quantum metrology of electromagnetic modes between dc and the Very High Frequency band (VHF) (…
Broadband parametric amplifiers based on nonlinear kinetic inductance artificial transmission lines
Saptarshi Chaudhuri, Dale Li, Kent Irwin +5
We present broadband parametric amplifiers based on the kinetic inductance of superconducting NbTiN thin films in an artificial (lumped-element) transmission line architecture. We…
Sideband Cooling Micromechanical Motion to the Quantum Ground State
J. D. Teufel, T. Donner, Dale Li +7
The advent of laser cooling techniques revolutionized the study of many atomic-scale systems. This has fueled progress towards quantum computers by preparing trapped ions in their…
Circuit cavity electromechanics in the strong coupling regime
J. D. Teufel, D. Li, M. S. Allman +4
Demonstrating and exploiting the quantum nature of larger, more macroscopic mechanical objects would help us to directly investigate the limitations of quantum-based measurements a…