Description
Recently, ultra-light dark matter (ULDM) has attracted attention as a new candidate for dark matter. In addition, there are experiments to detect a ULDM signal with ground-based gravitational wave (GW) detectors. While currently operating GW detectors can interact with and be sensitive to ULDM, the data from detectors contains narrow-band spectral artifacts, which have similar spectral morphologies to a possible ULDM signal. To detect a possible ULDM signal, such artifacts must be distinguished from the true signal. We introduce a method to characterize them and discuss the possibility of distinction by utilizing the signal correlation.
