Abstract

We generate light-mediated strong coupling between a nanomechanical membrane and atomic spins across one meter in a room-temperature environment. We observe spin-membrane normal mode splitting, coherent energy exchange oscillations, two-mode thermal noise squeezing, dissipative coupling with exceptional points, and sympathetic cooling of the membrane. Light-mediated interactions are a powerful tool that offers many further possiblities and is readily applicable to a variety of systems.

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