Tobias Gulden, Erez Berg, Mark S. Rudner, Netanel H. Lindner
SciPost Phys. 9, 015 (2020) ·
published 29 July 2020

· pdf
We investigate a mechanism to transiently stabilize topological phenomena in
longlived quasisteady states of isolated quantum manybody systems driven at
low frequencies. We obtain an analytical bound for the lifetime of the
quasisteady states which is exponentially large in the inverse driving
frequency. Within this lifetime, the quasisteady state is characterized by
maximum entropy subject to the constraint of fixed number of particles in the
system's FloquetBloch bands. In such a state, all the nonuniversal properties
of these bands are washed out, hence only the topological properties persist.
Dr Gulden: "Dear referee, we thank you fo..."
in Report on Exponentially long lifetime of universal quasisteady states in topological Floquet pumps