Roy, S.Mishra T., T.Tanatar, BilalBasu S., S.2022-02-152022-02-152021-03-090031-9007http://hdl.handle.net/11693/77353Systems with quasiperiodic disorder are known to exhibit a localization transition in low dimensions. After a critical strength of disorder, all the states of the system become localized, thereby ceasing the particle motion in the system. However, in our analysis, we show that in a one-dimensional dimerized lattice with staggered quasiperiodic disorder, after the localization transition, some of the localized eigenstates become extended for a range of intermediate disorder strengths. Eventually, the system undergoes a second localization transition at a higher disorder strength, leading to all states being localized. We also show that the two localization transitions are associated with the mobility regions hosting the single-particle mobility edges. We establish this reentrant localization transition by analyzing the eigenspectra, participation ratios, and the density of states of the system.EnglishAnderson localizationEdge statesTopological insulatorsDisordered systemsArticle10.1103/PhysRevLett.126.1068031079-7114