Dynamics of an electron in a tightly binding one-dimensional disordered system is studied numerically. The time evolution of wavepackets is traced by the time-dependent Schrödinger equation. The mean square displacement of the packet scaled by the localization length shows a universal time evolution from the ballistic regime to the localized regime in an ordinary disordered system. The time evolution in the modified Bernoulli systems with long-range structural correlation also shows the same universal diffusion.
|ジャーナル||Journal of the Physical Society of Japan|
|出版物ステータス||Published - 1992 9|
ASJC Scopus subject areas
- Physics and Astronomy(all)