QUBIT COUPLED MECHANICAL RESONATOR IN AN ELECTROMECHANICAL SYSTEM

<p>This thesis describes the development of a hybrid quantum electromechanical system. In this system the mechanical resonator is capacitively coupled to a superconducting transmon which is embedded in a superconducting coplanar waveguide (CPW) cavity. The difficulty of achieving high quality of superconducting qubit in a high-quality voltage-biased cavity is overcome by integrating a superconducting reflective T-filter to the cavity. Further spectroscopic and pulsed measurements of the hybrid system demonstrate interactions between the ultra-high frequency mechanical resonator and transmon qubit. The noise of mechanical resonator close to ground state is measured by looking at the spectroscopy of the transmon. At last, fabrication and tests of membrane resonators are discussed.</p>

Name thesis:degree_name

Doctor of Philosophy (PhD)

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Year

2017

Author dc:creator

• Hao, Yu

Contributors dc:contributor

• Matthew LaHaye
• Arindam Chakraborty

• electromechanical system
• mechanical resonator
• quantum hybrid system
• transmon
• Physical Sciences and Mathematics

Repository record dc:identifier

https://surface.syr.edu/etd/790

OAI identifier oai:identifier

oai:surface.syr.edu:etd-1791