Bayesian optimization of collective readouts combining dipole and quadrupole operators enables sub-SQL sensitivity in frequency-disordered spin ensembles, recovering metrological advantage where conventional squeezing fails.
@informaq.bsky.social
@informaq.bsky.socialBayesian optimization of collective readouts combining dipole and quadrupole operators enables sub-SQL sensitivity in frequency-disordered spin ensembles, recovering metrological advantage where conventional squeezing fails.
@informaq.bsky.socialVacuum Rabi oscillations generate spin squeezing through geometric focusing on the Bloch sphere, achieving N^-1/3 scaling and enabling 15 dB squeezing in cavity-coupled ¹⁷¹Yb atoms for precision quantum sensing.