A trapped ion in a spin-motion entangled state can detect kinetically mixed dark photon dark matter in the 10^{-15} to 10^{-14} eV mass range through Aharonov-Bohm phase shifts with parametrically enhanced sensitivity.
Variable Stars: which Nyquist Frequency ?
2 Pith papers cite this work. Polarity classification is still indexing.
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abstract
In the analysis of variable stars, the problem of sampling is central. This article focusses on the determination of the Nyquist frequency. It is well defined in the case of regular sampling. However, the time series of variable stars observations are generally unevenly sampled. Fourier analysis using the spectral window furnishes some clues about the equivalent Nyquist frequency in the irregular case. Often it is pushed very high, and thus very short periods can be detected. A specific example is shown, drawn from MACHO databases.
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hep-ph 2representative citing papers
Ultralight dark matter induces oscillating CKM elements that can be probed at NA62 through direct counting of meson decay events, which avoids sensitivity loss from unknown particle flux.
citing papers explorer
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Ultralight dark matter detection with trapped-ion interferometry
A trapped ion in a spin-motion entangled state can detect kinetically mixed dark photon dark matter in the 10^{-15} to 10^{-14} eV mass range through Aharonov-Bohm phase shifts with parametrically enhanced sensitivity.
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Oscillating Imprints of Dark Matter in Mesons Decays
Ultralight dark matter induces oscillating CKM elements that can be probed at NA62 through direct counting of meson decay events, which avoids sensitivity loss from unknown particle flux.