Anomalous multifractality in quantum chains with strongly correlated disorder
Anomalous multifractality in quantum chains with strongly correlated disorder
We demonstrate numerically that a robust and unusual multifractal regime can emerge in a one-dimensional quantum chain with maximally correlated disorder, above a threshold disorder strength. This regime is preceded by a mixed and an extended regime at weaker disorder strengths, with the former hosting both extended and multifractal eigenstates. …