SciPost logo

An ideal rapid-cycle Thouless pump

Savvas Malikis, Vadim Cheianov

SciPost Phys. 12, 203 (2022) · published 27 June 2022


Thouless pumping is a fundamental instance of quantized transport, which is topologically protected. Although its theoretical importance, the adiabaticity condition is an obstacle for further practical applications. Here, focusing on the Rice-Mele model, we provide a family of finite-frequency examples that ensure both the absence of excitations and the perfect quantization of the pumped charge at the end of each cycle. This family, which contains an adiabatic protocol as a limiting case, is obtained through a mapping onto the zero curvature representation of the Euclidean sinh-Gordon equation.

Cited by 1

Crossref Cited-by

Authors / Affiliation: mappings to Contributors and Organizations

See all Organizations.
Funder for the research work leading to this publication