168 citations · 307 across the 10 of their papers we have counts for
10 papers
QSHS: An Axion Dark Matter Resonant Search Apparatus
A. Alsulami, I. Bailey, G. Carosi +32
We describe a resonant cavity search apparatus for axion dark matter constructed by the Quantum Sensors for the Hidden Sector (QSHS) collaboration. The apparatus is configured to s…
The Effect of Parameter Variations on the Performance of the Josephson Travelling Wave Parametric Amplifiers
Searbhán Ó Peatáin, Tom Dixon, Phil J. Meeson +3
We have simulated the performance of the Josephson Travelling Wave Parametric Amplifier (JTWPA) based on the one-dimensional array of RF SQUIDs. Unlike the ideal model in which all…
Capturing Complex Behaviour in Josephson Travelling Wave Parametric Amplifiers
Tom Dixon, Jacob W. Dunstan, George B. Long +3
We present an analysis of wave-mixing in recently developed Josephson Travelling Wave Parametric Amplifiers (JTWPAs). Circuit simulations performed using WRspice show the full beha…
Angular dependent micro-ESR characterization of a locally doped Gd3+:Al2O3 system
I. S. Wisby, S. E. de Graaf, R. Gwilliam +5
Interfacing rare-earth doped crystals with superconducting circuit architectures provides an attractive platform for quantum memory and transducer devices. Here we present the deta…
Coupling of a locally implanted rare-earth ion ensemble to a superconducting micro-resonator
I. Wisby, S. E. de Graaf, R. Gwilliam +5
We demonstrate the coupling of rare-earth ions locally implanted in a substrate (Gd in AlO) to a superconducting NbN lumped-element micro-resonator. The hybrid d…
Direct spectrum analysis using a threshold detector with application to a superconducting circuit
G. Ithier, G. Tancredi, P. J. Meeson
We introduce a new and quantitative theoretical framework for noise spectral analysis using a threshold detector, which is then applied to a superconducting device: the Cavity Bifu…