SciPost Submission Page
Exponentially long lifetime of universal quasi-steady states in topological Floquet pumps
by Tobias Gulden, Erez Berg, Mark S. Rudner, Netanel H. Lindner
|As Contributors:||Tobias Gulden|
|Submitted by:||Gulden, Tobias|
|Submitted to:||SciPost Physics|
|Subject area:||Quantum Physics|
We investigate a mechanism to transiently stabilize topological phenomena in long-lived quasi-steady states of isolated quantum many-body systems driven at low frequencies. We obtain an analytical bound for the lifetime of the quasi-steady states which is exponentially large in the inverse driving frequency. Within this lifetime, the quasi-steady state is characterized by maximum entropy subject to the constraint of fixed number of particles in the system's Floquet-Bloch bands. In such a state, all the non-universal properties of these bands are washed out, hence only the topological properties persist.