5 papers
A quantum-enhanced search for dark matter axions
K. M. Backes, D. A. Palken, S. Al Kenany +21
In dark matter axion searches, quantum uncertainty manifests as a fundamental noise source, limiting the measurement of the quadrature observables used for detection. We use vacuum…
Efficient and Low-Backaction Quantum Measurement Using a Chip-Scale Detector
Eric I. Rosenthal, Christian M. F. Schneider, Maxime Malnou +13
Superconducting qubits are a leading platform for scalable quantum computing and quantum error correction. One feature of this platform is the ability to perform projective measure…
An improved analysis framework for axion dark matter searches
D. A. Palken, B. M. Brubaker, M. Malnou +17
In experiments searching for axionic dark matter, the use of the standard threshold-based data analysis discards valuable information. We present a Bayesian analysis framework that…
Squeezed vacuum used to accelerate the search for a weak classical signal
M. Malnou, D. A. Palken, B. M. Brubaker +3
Many experiments that interrogate fundamental theories require detectors whose sensitivities are limited by the laws of quantum mechanics. In cavity-based searches for axionic dark…
Results from phase 1 of the HAYSTAC microwave cavity axion experiment
L. Zhong, S. Al Kenany, K. M. Backes +18
We report on the results from a search for dark matter axions with the HAYSTAC experiment using a microwave cavity detector at frequencies between 5.6-5.8. We exclude a…