Many-body dynamics and prethermalization in interacting periodically driven systems

A wave of intense interest over the past several years has generated a rich variety of proposals for intriguing new phenomena that can be realized in periodically driven quantum many-body systems, and early experiments to observe them. Understanding the stability of such phenomena and ways to mitigate heating due to energy absorption from the drive are important for enabling further advances in the field. We investigate transient dynamics and prethermalization in the context of Floquet gap opening [1] and chiral transport [2] in interacting systems subjected to high and low frequency drives, respectively. We study the relevant dynamical timescales using non-equilibrium Green's functions, consistently capturing the heating processes, and discuss the regimes in which many-body phenomena can be observed before heating becomes significant.
[1] E. Kandelaki, M. S. Rudner, arXiv:1709.04448
[2] N. H. Lindner, E. Berg, M. S. Rudner, Phys. Rev. X 7, 011018 (2017)