Effective Faraday interaction between light and Helium-3 nuclear spins in a multi-pass celltranslating…

arXiv:2606.20328v1 Announce Type: cross Abstract: Helium-3 nuclear spins form an exceptionally stable quantum system with extremely long coherence time, offering exciting opportunities for quantum technologies. In particular, nuclear spin-squeezed states promise enhanced precision for sensing tasks and tests of new physics. A central challenge for all these applications is the realization of a controllable light-nuclear spin interface. Here we experimentally demonstrate such an interface by exp