Electronic Localization Properties of a Double Strand of DNA: A Simple Model with Long-Range Correlated Hopping Disorder

Details Electronic Localization Properties of a Double Strand of DNA: A Simple Model with Long-Range Correlated Hopping Disorder Electronic Localization Properties of a Double Strand of DNA: A Simple Model with Long-Range Correlated Hopping Disorder

2004-01-20

arxiv.org/abs/cond-mat/0401351v2

Physics

Condensed Matter

Disordered Systems and Neural Networks

21 pages, 12 figures

Scientific paper

Localization property in the disordered few-chain DNA systems with a long-range correlation is numerically investigated. We apply the chain system with the correlated disorder in the interchain and/or intrachain hoppings to the simple model of a double strand of DNA. Numerical results for the density of states and the Lyapunov exponent of the wave function in the two- or three-chain models are given. It is found that the correlation effect enhances the localization length (the inverse least nonnegative Lyapunov exponent) around the band center.

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