In the monitored LMG model, static J_z readout is limited by a parity horizon set by the instanton action S_inst, but dynamical homodyne records extract hidden parity information over a window of sizes set by xi = omega_01/Gamma_01.
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Reading Weakly, Acting Strongly: A Static Parity Horizon and its Dynamical Bypass in the Monitored Lipkin-Meshkov-Glick Model
In the monitored LMG model, static J_z readout is limited by a parity horizon set by the instanton action S_inst, but dynamical homodyne records extract hidden parity information over a window of sizes set by xi = omega_01/Gamma_01.