Phys.org  February 19, 2024 Researchers at the University of Colorado described a method to create and store scalable and long-lived entangled spin-squeezed states within a manifold of many-body cavity dark states using collective emission of light from multilevel atoms inside an optical cavity. They showed that the system could be tuned to generate squeezing in a dark state where it will be immune to super radiance. More generically that squeezing could be generated using a combination of super radiance and coherent driving in a bright state, and subsequently transferred via single-particle rotations to a dark state where squeezing could be […]