Abstract:
Recently, attention has been drawn to the possibility of searching for ultralight (particle mass 10-12-10-6 eV) fields that could be a significant component of Dark Matter. In this talk, I will describe two such international-collaboration experiments: the Cosmic Axion Spin Precession Experiment (CASPEr) [1] and the Global Network of Optical Magnetometers for Exotic physics searches (GNOME) [2,3]. These searches are intrinsically related to the other fundamental-physics quests, including the multipronged attempts to understand matter-antimatter asymmetry of the Universe.