Near coherent states of an electron in a time-dependent linear potential

详细信息    查看全文

• 作者：Gengbiao Lu ; Wenhua Hai and Lihua Cai
• 关键词：Time-dependent linear potential ; Exact electronic state ; Phase coherence ; Band structure
• 刊名：Physics Letters A
• 出版年：2006
• 出版时间：11 September 2006
• 年：2006
• 卷：357
• 期：3
• 页码：181-187
• 全文大小：233 K

文摘

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