Broad Band Radiation Gradient Forces in Space

Explore the fascinating world of broad band radiation gradient forces in space through this 22-minute conference talk by Helmut Ritsch. Delve into the classification of light forces, including radiation pressure and gradient forces, and discover how they manifest in spatially inhomogeneous broadband radiation. Learn about the surprising attractive net force created by a hot sphere's thermal radiation, and understand how the sun acts as an optical trap for hydrogen. Examine novel inter-particle forces arising from collective scattering of broadband light by multiple particles. Gain insights into proposed foundational studies of gradient forces on atoms and nanoparticles in astrophysical scenarios using quantum optics techniques. Cover topics such as theory, potential, hydrogen examples, slow hydrogen, radiation pressure, blackbody radiation, hot dust, and multiparticle physics, concluding with a comprehensive overview of this intriguing field.