In driven XXZ Heisenberg spin chains, the Chern number increases with chain length and is tunable by anisotropy, yielding a topological frequency converter with arbitrarily large quantized conversion ratio.
del Campo, Shortcuts to Adiabaticity by Counterdia- batic Driving, Phys
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Universal Topological Power Transfer with Arbitrarily Large Chern Number in Driven Quantum Spin Chains
In driven XXZ Heisenberg spin chains, the Chern number increases with chain length and is tunable by anisotropy, yielding a topological frequency converter with arbitrarily large quantized conversion ratio.