A fractional-dimensional space approach to the polaron effect in quantum wells

被引：26
|
作者：
Matos-Abiague, A [1 ]
机构：
[1] Max Planck Inst Mikrostrukturphys, D-06120 Halle Saale, Germany
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2002年 / 14卷 / 17期
关键词：
D O I：
10.1088/0953-8984/14/17/325
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Polarons confined in rectangular and parabolic quantum wells are studied within the framework of the fractional-dimensional space approach. In this scheme, the real confined 'polaron plus quantum well' system is mapped into an effective fractional-dimensional bulk in which the polaron behaves in an unconfined fashion, and the fractional dimension is essentially related to the degree of confinement of the actual system. Analytical expressions allowing a very simple estimation of the corresponding polaron corrections are found. The fractional-dimensional theoretical results are shown to be in reasonable agreement with previous more detailed calculations.
引用
收藏
页码：4543 / 4552
页数：10
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