Iterative Method for Generating Correlated Binary Sequences

TL;DR

This paper introduces an efficient iterative method to generate correlated binary sequences with specific correlation functions, useful for designing disordered materials with tailored transport properties.

Contribution

A novel iterative linear modulation approach for generating correlated binary sequences with prescribed correlations, improving correlation strength over single-step methods.

Findings

Method effectively generates sequences with inverse power-law correlations.

Iterative approach increases correlation strength significantly.

Applicable to design of disordered superlattices and waveguides.

Abstract

We propose a new efficient iterative method for generating random correlated binary sequences with prescribed correlation function. The method is based on consecutive linear modulations of initially uncorrelated sequence into a correlated one. Each step of modulation increases the correlations until the desired level has been reached. Robustness and efficiency for the proposed algorithm are tested by generating sequences with inverse power-law correlations. The substantial increase in the strength of correlation in the iterative method with respect to the single-step filtering generation is shown for all studied correlation functions. Our results can be used for design of disordered superlattices, waveguides, and surfaces with selective transport properties.