Single-Particle Mobility Edge in a One-Dimensional Quasiperiodic Optical Lattice
Single-Particle Mobility Edge in a One-Dimensional Quasiperiodic Optical Lattice
A single-particle mobility edge (SPME) marks a critical energy separating extended from localized states in a quantum system. In one-dimensional systems with uncorrelated disorder, a SPME cannot exist, since all single-particle states localize for arbitrarily weak disorder strengths. However, in a quasiperiodic system, the localization transition can occur at a …