@inproceedings{872c3aa1299d40cb8c52341756f1aa9a,
title = "Exclusion Limits on Hidden-Photon Dark Matter Near 2 neV from a Fixed-Frequency Superconducting Lumped-Element Resonator",
abstract = "We present the design and performance of a simple fixed-frequency superconducting lumped-element resonator developed for axion and hidden-photon dark matter detection. A rectangular NbTi inductor was coupled to a Nb-coated sapphire capacitor and immersed in liquid helium within a superconducting shield. The resonator was transformer-coupled to a DC SQUID for readout. We measured a quality factor of ∼40,000 at the resonant frequency of 492.027 kHz and set a simple exclusion limit on ∼2 neV hidden photons with kinetic mixing angle ε ≳ 1.5 × 10−9 based on 5.14 h of integrated noise. This test device informs the development of the Dark Matter Radio, a tunable superconducting lumped-element resonator which will search for axions and hidden photons over the 100 Hz to 300 MHz frequency range.",
keywords = "Dark Matter Radio, Hidden photon, Lumped-element, Superconducting resonator",
author = "A. Phipps and Kuenstner, {S. E.} and S. Chaudhuri and Dawson, {C. S.} and Young, {B. A.} and FitzGerald, {C. T.} and H. Froland and K. Wells and D. Li and Cho, {H. M.} and S. Rajendran and Graham, {P. W.} and Irwin, {K. D.}",
note = "Publisher Copyright: {\textcopyright} 2020, This is a U.S. government work and not under copyright protection in the U.S.; foreign copyright protection may apply.; 3rd International Workshop on Microwave Cavities and Detectors for Axion Research, 2018 ; Conference date: 21-08-2018 Through 24-08-2018",
year = "2020",
doi = "10.1007/978-3-030-43761-9_16",
language = "English (US)",
isbn = "9783030437602",
series = "Springer Proceedings in Physics",
publisher = "Springer Science and Business Media Deutschland GmbH",
pages = "139--145",
editor = "Gianpaolo Carosi and Gray Rybka",
booktitle = "Microwave Cavities and Detectors for Axion Research - Proceedings of the 3rd International Workshop, 2018",
address = "Germany",
}