A5064164682- Topological Materials and Phenomena
- Quantum Mechanics and Non-Hermitian Physics
- Quantum and electron transport phenomena
- Mechanical and Optical Resonators
University of Bonn
2020
Quantized dynamics is essential for natural processes and technological applications alike. The work of Thouless on quantized particle transport in slowly varying potentials (Thouless pumping) has played a key role understanding that such quantization may be caused not only by discrete eigenvalues quantum system, but also invariants associated with the nontrivial topology Hamiltonian parameter space. Since its discovery, pumping been believed to restricted limit slow driving, fundamental...
Thouless pumping is intrinsically an adiabatic effect, which breaks down at finite driving frequencies. We demonstrate both theoretically and experimentally that using time-periodic dissipation can be restored outside of the limit.