Coupling Harmonic Oscillators to Superconducting Quantum Interference Cavities

Doctoral thesis (2021)

Authors

I.C. Corveira Rodrigues QN/Steele Lab - AS
Research Group
QN/Steele Lab (AS) (TU Delft)
Copyright: © 2021 I.C. Corveira Rodrigues
DOI: https://doi.org/10.4233/uuid:90c588b1-ebef-4ab8-b51f-b3221d8ad6cc
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Published Date

2021

Language

English

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Faculty

Applied Sciences

Department

QN/Quantum Nanoscience

Research Group

QN/Steele Lab

Abstract

This thesis explores the coupling of microwave cavities containing a Superconducting QUantum Interference Device (SQUID) to a mechanical resonator by means of a flux-mediated optomechanical coupling scheme, and to a Radio-Frequency (RF) circuit via a photon-pressure interaction. While flux-mediated optomechanical systems open the door for the exploration of optomechanical single-photon effects, ultimately allowing for the generation of non-classical states in mechanical oscillators and for the creation of optomechanical qubits, the realization of photon-pressure systems brings rich possibilities for quantum-limited sensing and quantum signal processing, representing a first step towards radio-frequency quantum photonics. Besides presenting the experimental work done with the systems described above, this thesis also provides a theoretical description of their working principle, details on their fabrication, and insights on maximizing their single-photon coupling strengths as well as an overview of the experimental challenges associated with SQUID cavities.

Files

Dissertation_IR.pdf
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