双链DNA的电子定域性质：一个简单的长程关联跳跃无序模型
Electronic Localization Properties of a Double Strand of DNA: A Simple Model with Long-Range Correlated Hopping Disorder
摘要：
数值研究了具有长程关联的无序少链DNA系统的局域化性质。我们应用链系统与相关的障碍，在链间和/或链内的跳跃到一个简单的双链DNA模型。给出了两链和三链模型的态密度和波函数的李雅普诺夫指数的数值结果。研究发现，相关效应增强了带中心附近的局域化长度（最小非负李雅普诺夫指数的倒数）。
英文摘要：
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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