Exponentially long lifetime of universal quasi-steady states in topological Floquet pumps
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- SciPostPhys_9_1_015
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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.
Originalsprog | Engelsk |
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Artikelnummer | 015 |
Tidsskrift | SciPost Physics |
Vol/bind | 9 |
Udgave nummer | 1 |
Antal sider | 38 |
ISSN | 2542-4653 |
DOI | |
Status | Udgivet - jul. 2020 |
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ID: 249421642