二聚体抽取与Kicked Harper的复杂嵌套定域弹道相位
Dimer Decimation and Intricately Nested Localized-Ballistic Phases of Kicked Harper
摘要：
为了研究具有局域跃迁的受激量子系统，引入了二聚体抽取方案。紧结合表示的模型被映射到一个矢量化的二聚体，其中的二聚体的渐近解离示出对应于消失的透射系数通过系统。该方法揭示了一个复杂的嵌套的扩展和本地化的阶段在二维参数空间。重整化工具除了能以极高的精度计算输运特性外，还提供了一种计算准能谱的新方法。
英文摘要：
Dimer decimation scheme is introduced in order to study the kicked quantum systems exhibiting localization transition. The tight-binding representation of the model is mapped to a vectorized dimer where an asymptotic dissociation of the dimer is shown to correspond to the vanishing of the transmission coefficient thru the system. The method unveils an intricate nesting of extended and localized phases in two-dimensional parameter space. In addition to computing transport characteristics with extremely high precision, the renormalization tools also provide a new method to compute quasienergy spectrum.
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