Quantifying measurement-induced quantum-to-classical crossover using an open-system entanglement measure
Christian Carisch, Alessandro Romito, Oded Zilberberg · Physical Review Research · 2023
The impact of measurements on the entanglement of mixed states and stochastic pure-state trajectories is compared. Whereas at long times the response is different, at intermediate times the two descriptions respond similarly in terms of a coherence length whose dependence on the measurement strength is explained by a cascade of underdamped-to-overdamped transitions.