Multiple intermediate phases in the interpolating Aubry-André-Fibonacci model

Abstract

We investigate a generalized interpolating Aubry-André-Fibonacci (IAAF) model with p-wave superconducting pairing. In the Aubry-André limit, we demonstrate that the system experiences transitions from a pure phase, either extended or critical, to a variety of intermediate phases and ultimately enters a localized phase with increasing potential strength. These intermediate phases include those with coexisting extended and localized states, extended and critical states, localized and critical states and a mix of extended, critical and localized states. Each intermediate phase exhibits at least one type of mobility edge separating different states. As the system approaches the Fibonacci limit, both the extended and localized phases diminish, and the system tends towards a critical phase.

arXiv comment11 pages, 12 figures

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• The fundamental localization phases in quasiperiodic systems: A unified framework and exact results
• Multifractal-enriched mobility edges and emergent quantum phases in Rydberg atomic arrays
• Resonances, mobility edges and gap-protected Anderson localization in generalized disordered mosaic lattices
• Non-equilibrium dynamics of localization phase transition in the non-Hermitian Disorder-Aubry-André model
• Phase Transitions and Critical Behavior in Quasi-One-Dimensional Two-Channel Systems with Quasiperiodic Disorder