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Super periodic potential
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DOI：10.1016/j.aop.2018.02.012.png)
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In this paper we introduce the concept of super periodic potential (SPP) of arbitrary order n, n is an element of I+, in one dimension. General theory of wave propagation through SPP of order n is presented and the reflection and transmission coefficients are derived in their closed analytical form by transfer matrix formulation. We present scattering features of super periodic rectangular potential and super periodic delta potential as special cases of SPP. It is found that the symmetric self-similarity is the special case of super periodicity. Thus by identifying a symmetric fractal potential as special cases of SPP, one can obtain the tunnelling amplitude for a particle from such fractal potential. By using the formalism of SPP we obtain the close form expression of tunnelling amplitude of a particle for general Cantor and Smith-Volterra-Cantor potentials. (C) 2018 Elsevier Inc. All rights reserved.
Keyword:
Super periodic potential
Transmission coefficients in closed form
Tunnelling amplitude
Fractal potential
Cantor potentials
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