77 citations · 234 across the 11 of their papers we have counts for
11 papers
UPLOAD-HELIX: High-Helicity Single-Mode Microwave Haloscope with Low-Noise Interferometric Readout for Ultralight Axion Dark Matter
Robert C. Crew, Emma C. I. Paterson, Maxim Goryachev +5
We propose a superconducting single-mode microwave haloscope based on chiral cavity resonators for the detection of ultralight dark matter axions over the mass range $4\times10^{-1…
A Search for Effects of Cosmic Rays with Multi-scale Entropy Metrics
William M. Campbell, Ben T. McAllister, Eugene N. Ivanov +4
We report a comparison of frequency fluctuations in oven-controlled quartz bulk-acoustic-wave oscillators operated above ground and one kilometre underground in a low-muon-backgrou…
The Study of Thermal Fluctuations in Microwave and Mechanical Resonators
Michael T Hatzon, Eugene N Ivanov, Aaron Quiskamp +1
We report high-resolution measurements of thermal fluctuations in microwave and mechanical resonators using a dual-channel readout system. The latter comprises a low-noise amplifie…
Near-quantum-limited axion dark matter search with the ORGAN experiment around 26 eV
Aaron P. Quiskamp, Graeme Flower, Steven Samuels +5
The latest result from the ORGAN experiment, an axion haloscope is presented. This iteration of the experiment operated at millikelvin temperatures using a flux-driven Josephson pa…
Microwave Cavity Mode Optimisation by Background Anti-Resonance Tuning
Michael T. Hatzon, Eugene N. Ivanov, Jeremy F. Bourhill +2
To derive the best oscillator phase noise when implementing a high-Q resonator, the spectral line-shape must have high contrast and symmetry. Ideally, this line-shape is Lorentzian…
Frequency Stable Microwave Sapphire Oscillators
Eugene N. Ivanov, Michael E. Tobar
We show that state-of-the-art phase noise and high frequency stability could be simultaneously achieved in a microwave oscillator based on the sapphire-loaded cavity resonator. The…