کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1862789 | 1037612 | 2006 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Near coherent states of an electron in a time-dependent linear potential
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
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چکیده انگلیسی
We investigate quantum motions of an electron driven by a strong time-dependent linear potential in a one-dimensional (1D) quantum wire. An exact n wave-packet-train solution of Gaussian-type is constructed, whose center moves acceleratively along the corresponding classical trajectory. It is shown that the single Gaussian wave-packet solution recently reported by Luan and Tang [P.-G. Luan, C.-S. Tang, Phys. Rev. A 71 (2005) 014101] is the special case n=0 of our result. The interesting physical properties described by the n wave-packet-train solution are studied, which concern the nearly squeezing coherence property of the wave-function, the band structure of average energy composed of quantum levels and classical oscillations, and the probability densities spreading and collapsing like that of a free particle.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 357, Issue 3, 11 September 2006, Pages 181-187
Journal: Physics Letters A - Volume 357, Issue 3, 11 September 2006, Pages 181-187
نویسندگان
Gengbiao Lu, Wenhua Hai, Lihua Cai,