Exclusion Limits on Hidden-Photon Dark Matter near 2 neV from a Fixed-Frequency Superconducting Lumped-Element Resonator
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 shi...
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Main Authors | , , , , , , , , , , , , |
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Format | Journal Article |
Language | English |
Published |
20.06.2019
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Subjects | |
Online Access | Get full text |
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Summary: | 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 $\sim$40,000 at the resonant frequency of 492.027
kHz and set a simple exclusion limit on $\sim$2 neV hidden photons with kinetic
mixing angle $\varepsilon\gtrsim1.5\times10^{-9}$ based on 5.14 hours 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. |
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DOI: | 10.48550/arxiv.1906.08814 |