准周期环中持续电流的重整化群研究
A renormalization group study of persistent current in a quasiperiodic ring
摘要：
本文提出了一种基于格林函数的实空间重整化群方法来计算多通道准周期Fibonacci紧束缚环中的持续电流。与传统的方法不同，本方案提供了一个强有力的工具，在大周期和准周期环，甚至在微米尺度范围内的持续电流的理论描述具有非常高的精度，这强调了这项工作的优点。
英文摘要：
We propose a real-space renormalization group approach for evaluating persistent current in a multi-channel quasiperiodic fibonacci tight-binding ring based on a Green's function formalism. Unlike the traditional methods, the present scheme provides a powerful tool for the theoretical description of persistent current with a very high degree of accuracy in large periodic and quasiperiodic rings, even in the micron scale range, which emphasizes the merit of this work.
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