کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1868324 | 1038449 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sensitivity to initial conditions of the wave-packet dynamics in diluted Anderson chains
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Sensitivity to initial conditions of the wave-packet dynamics in diluted Anderson chains Sensitivity to initial conditions of the wave-packet dynamics in diluted Anderson chains](/preview/png/1868324.png)
چکیده انگلیسی
We study the one-electron wave-packet dynamics in the one-dimensional diluted Anderson model which is composed of two interpenetrating chains with pure and random on-site potentials, respectively. This model presents extended states at a particular resonance energy. Starting with one electron fully localized at the site closer to the chain center, we solve the set of coupled motion equations and calculate the time evolution of the wave-packet width. We report on a long-time memory effect which is reflected by distinct asymptotic dynamics governing the wave-function spread for electrons initially localized at random or pure sites. This anomalous behavior is discussed under the light of the Bloch character of the extended resonant state.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 355, Issue 6, 17 July 2006, Pages 468–472
Journal: Physics Letters A - Volume 355, Issue 6, 17 July 2006, Pages 468–472
نویسندگان
S.S. Albuquerque, F.A.B.F. de Moura, M.L. Lyra, E. Lazo,