Extreme parametric sensitivity of steady-state transport in quantum Rabi model

We numerically investigate the steady-state transport properties of the quantum Rabi model, commonly employed to study atom-cavity interactions, subject to phenomenological dissipation. It is found that the steady-state transport depends sensitively on the system parameters, specifically it is significantly enhanced when the parameters are carefully tuned. We attribute this enhancement of open system transport to the resonance between specific energy levels of the corresponding closed system. The connection to quantum chaos and the effects of dissipation is briefly discussed.