多重周期摂動を伴うハーパーモデルにおける量子拡散I

山田, 弘明; 池田, 研介

doi:10.51094/jxiv.465

##article.authors##

山田, 弘明山田物理学研究所
池田, 研介立命館大学理工学部

DOI:

https://doi.org/10.51094/jxiv.465

キーワード:

量子拡散、アンダーソン局在、正常拡散、弾道的拡散

抄録

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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