Observation of spin squeezing with contact interactions in one- and
three-dimensional easy-plane magnets
Observation of spin squeezing with contact interactions in one- and
three-dimensional easy-plane magnets
Entanglement in a many-particle system can enable measurement sensitivities beyond that achievable by only classical correlations. For an ensemble of spins, all-to-all interactions are known to reshape the quantum projection noise, leading to a form of entanglement known as spin squeezing. Here, we demonstrate spin squeezing with strictly short-range contact …