Explore the effects of compressibility on Kelvin-Helmholtz and Rayleigh-Taylor instabilities in this 22-minute conference talk by Yasuhide Fukumoto from Kyushu University. Delivered as part of the Interfaces and Mixing in Fluids, Plasmas, and Materials conference at the Kavli Institute for Theoretical Physics, this presentation delves into fundamental physics concepts with applications ranging from dark matter searches to gravitational wave detection. Gain insights into the intersection of quantum metrology, optics, condensed matter, atomic physics, and quantum information. Discover how this interdisciplinary approach fosters collaboration between particle physics experts and promotes new scientific discoveries in quantum technologies and fundamental physics studies.