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|Title:||Quantized adiabatic transport in momentum space|
|Source:||Ho, D.Y.H., Gong, J. (2012-07-06). Quantized adiabatic transport in momentum space. Physical Review Letters 109 (1) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.109.010601|
|Abstract:||Though topological aspects of energy bands are known to play a key role in quantum transport in solid-state systems, the implications of Floquet band topology for transport in momentum space (i.e., acceleration) have not been explored so far. Using a ratchet accelerator model inspired by existing cold-atom experiments, here we characterize a class of extended Floquet bands of one-dimensional driven quantum systems by Chern numbers, reveal topological phase transitions therein, and theoretically predict the quantization of adiabatic transport in momentum space. Numerical results confirm our theory and indicate the feasibility of experimental studies. © 2012 American Physical Society.|
|Source Title:||Physical Review Letters|
|Appears in Collections:||Staff Publications|
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