Prethermal Stability of Eigenstates under High Frequency Floquet Driving
Prethermal Stability of Eigenstates under High Frequency Floquet Driving
Systems subject to high-frequency driving exhibit Floquet prethermalization, that is, they heat exponentially slowly on a timescale that is large in the drive frequency, ${\ensuremath{\tau}}_{\mathrm{h}}\ensuremath{\sim}\mathrm{exp}(\ensuremath{\omega})$. Nonetheless, local observables can decay much faster via energy conserving processes, which are expected to cause a rapid decay in the fidelity of an initial …