Quantum electromechanics of a hypersonic crystal

Quantum Electromechanics with Two Tone Drive

In the field of mechanics, it is a long standing goal to measure quantum behavior in ever larger and more massive objects. It may seem like an obvious conclusion now, but up until recently it was not clear whether a macroscopic mechanical resonator – built up from nearly 10 atoms – could be fully described as an ideal quantum harmonic oscillator. With recent advances in the fields of optoand el...

Quantum electromechanics: qubits from buckling nanobars

We propose a mechanical qubit based on buckling nanobars—a nano-electromechanical system so small as to be quantum coherent. To establish buckling nanobars as legitimate candidates for qubits, we calculate the effective buckling potential that produces the two-level system and identify the tunnel coupling between the two local states. We propose different designs of nanomechanical qubits and de...

Quantum electromechanics on silicon nitride nanomembranes

Radiation pressure has recently been used to effectively couple the quantum motion of mechanical elements to the fields of optical or microwave light. Integration of all three degrees of freedom-mechanical, optical and microwave-would enable a quantum interconnect between microwave and optical quantum systems. We present a platform based on silicon nitride nanomembranes for integrating supercon...

Electromechanics & MEMS

The work reported here combines elements of electromechanics, power electronics and applied control primarily in the analysis, design and control of energy conversion systems. The principal applications focus on systems involving: macro-scale rotating machinery; micro-scale (MEMS) sensors, actuators and energy converters; and flexible structures. In these applications, the dual use of electrome...

Microwave Electromechanics: Measuring and Manipulating the Quantum State of a Macroscopic Mechanical Oscillator