21 Oct 2025 Tue 4 pm

Thouless pumping is a phenomenon of quantized transport in adiabatically modulated systems, widely recognized across various areas of physics. Non-Abelian Thouless pumping occurs in systems with degenerate Bloch bands, inducing both transport and geometric unitary transformations of initially localized states within that degenerate subspace. In this talk, we discuss non-Abelian Thouless pumping in two distinct systems, each featuring two doubly degenerate bands: a flat band lattice reminiscent of the one-dimensional Lieb chain and a Rice-Mele ladder model. Finally, we outline a possible implementation of Thouless pumping for interacting particles in one-dimensional allband-flat lattices.

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