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Fluctuation levels in disordered systems (survey)

I. M. Lifshit︠s︡Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSRS. A. GredeskulPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSRL. А. PasturPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR
ABI

Abstract

The theory of fluctuation levels in disordered systems is elucidated. The main attention is paid to the behavior of the density of states in that spectrum domain where it originates only because of low-probability potential fluctuations. Within the framework of a single approach, all results known at this time which describe the behavior of the density of states in the fluctuation spectrum domain are obtained.

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