Lifshitz Tails for the Interband Light Absorption Coefficient

Proceedings Mathematical Sciences

M Krishna¹  W Kirsch² 

[1] Institute of Mathematical Sciences, Taramani, Chennai 00 , India$$;Fakultät für Mathematik und Informatik, FernUniversität in Hagen, 0 Hagen, Germany$$

关键词: Interband light absorption coefficient;    random operators;    density of states.;   

DOI  :  

学科分类：数学（综合）

来源: Indian Academy of Sciences

【 摘 要 】

In this paper we consider the interband light absorption coefficient (ILAC) for various models. We show that at the lower and upper edges of the spectrum the Lifshitz tails behaviour of the density of states implies similar behaviour for the ILAC at appropriate energies. The Lifshitz tails property is also exhibited at some points corresponding to the internal band edges of the spectrum.

【 授权许可】

Unknown