The Timescales of Quantum Breaking

Understand

Due to the inevitable existence of quantum effects, a classical description generically breaks down after a finite quantum break-time $t_q$.

• We aim to find criteria for determining $t_q$.
• To this end, we construct a new prototype model that features numerous dynamically accessible quantum modes.
• Using explicit numerical time evolution, we establish how $t_q$ depends on the parameters of the system such as its particle number $N$.