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Quantum Behavior of Electro-mechanical Structures

Keith Schwab, Caltech

(Session 6 : Friday from 9:15am - 10:00am)

Electro-mechanical structures composed of a radio-frequency mechanical resonator parametrically coupled to a superconducting microwave frequency electrical resonator, offer an opportunity to study quantum behavior of both the electronic and mechanical degrees of freedom. We have recently demonstrated detection of a single motional quadrature with imprecision less than x_zp, and avoidance of the backaction due to the shot noise of the microwave field. We have also demonstrated the measurement of the imbalance between up and down conversion and will discuss the interpretation of these measurements. Finally, we have also recently demonstrated quantum squeezing of the motion using a reservoir engineering technique described by Aash Clerk et al and will present this new data.