Proposal for spin squeezing in rare-earth-ion-doped crystals with a four-color scheme
Proposal for spin squeezing in rare-earth-ion-doped crystals with a four-color scheme
Achieving spin squeezing within solid-state devices is a long-standing research goal due to the promise of their particularities, for instance, their long coherence times, the possibility of low-temperature experiments, or the integration of entanglement-assisted sensors on-chip. In this work, we investigate an interferometer-free four-color scheme to achieve spin squeezing of …