Quantum diffusion in quasi-periodically perturbed Harper model I
DOI:
https://doi.org/10.51094/jxiv.465Keywords:
quantum diffusion, Anderson localization, normal diffusion, ballistic diffusionAbstract
多色時間摂動を伴ったHarper モデルにおける量子波束の拡散の局在・非局在性を調べた。摂動強度を増大すると、局在相、弾道相どちらの場合でも、2 色以上では拡散状態へ転移することが確かめられた。局在状態の性質も含めて、これらの拡散状態に関する数値計算データを整理して示すことが本稿の目的である。
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Submitted: 2023-07-29 11:22:09 UTC
Published: 2023-08-03 06:26:40 UTC
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Hiroaki Yamada
Kensuke S. Ikeda
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