Title : "Recent progress at Axion Dark Matter eXperiment"
Speaker Name: Dan Zhang, University of Washington
 Abstract : The existence of QCD axion is strongly motivated as a dynamical solution to the strong CP problem. By either the misalignment mechanism or by topological defect decays in the early universe, QCD axions can be the primary constituent of cold dark matter, which contributes 85% of the total mass in the standard cosmology. The Axion Dark Matter eXperiment (ADMX) is a pioneer QCD axion dark matter search experiment based on the Sikivie-type haloscope. Unprecedented sensitivity has been achieved to the benchmark models after implementing Josephson Parametric Amplifier (JPA) for O(1) µeV axion masses. In this talk, I will review the recent progress at ADMX.