Signatures of the collapse and revival of a spin Schroedinger cat state in a continuously monitored field mode

摘要

We study the effects of continuous measurement of the field mode during the collapse and revival of spin Schrodinger cat states in the Tavis-Cummings model of N qubits (two-level quantum systems) coupled to a field mode. We show that a compromise between relatively weak and relatively strong continuous measurement will not completely destroy the collapse and revival dynamics while still providing enough signal-to-noise resolution to identify the signatures of the process in the measurement record. This type of measurement would in principle allow the verification of the occurrence of the collapse and revival of a spin Schrodinger cat state.