We review the recent advances in the understanding of sources of high frequency gravitational waves and how to detect them. Searches for gravitational waves share much in common with searches for wave-like dark matter. We will highlight similarities and differences.
We report the observation of the Axion quasiparticle in the condensed matter system, 2D MnBi2Te4. Its electronic properties feature a nonzero theta angle that relates electric and magnetic fields within the material. We observed coherent oscillation of this theta angle in real time at a frequency of 44 GHz by exciting a specific magnetic coherent mode (the out-of-phase antiferromagnetic...
ADMX-EFR (Axion Dark Matter eXperiment with Extended Frequency Range) will significantly scale up existing ADMX capabilities. To date, ADMX setups have probed the largest fraction of QCD dark matter axion parameter space at DFSZ sensitivity, using resonant conversion of dark matter axions to photons in a high-Q resonant cavity. ADMX-EFR will use a coherently power combined array of 18...
LUX-ZEPLIN(LZ) is a direct detection dark matter experiment located nearly a mile underground at the Sanford Underground Research Facility (SURF) in Lead, South Dakota, USA. Employing a dual-phase Time Projection Chamber (TPC) containing 7 tonnes of active xenon surrounded by veto systems, LZ offers world-leading sensitivity in detecting Weakly Interacting Massive Particles (WIMPs), a highly...
While there is an abundance of experiments searching for axion dark matter (DM) via its electromagnetic coupling, there are fewer utilizing its derivative coupling to electrons and nucleons. This direct coupling generates dynamical effects through the fermion spin, and therefore spin-polarized targets are a naturally useful target. We propose using spin-polarized or magnetized analogs of...
CRESST-III (Cryogenic Rare Event Search with Superconducting Thermometers) is an experiment located at the LNGS underground laboratories in Italy, focused on the direct detection of low-mass dark matter particles via their scattering off nuclei in cryogenic detectors, using multi-target materials such as CaWO$_4$, Al$_2$O$_3$, LiAlO$_2$, and Si.
CRESST-III has the best sensitive calorimeters...
We present the first results for a new microwave cavity haloscope based in Mainz, Germany. Over the past 2 years the experiment has been planned, constructed and now yields the first result in the search for dark photons within a frequency range of approximately 0.1 MHz centered around 8.47 GHz.
This result has been achieved by using a NbN-coated superconducting cavity, which differs...
