Mobility edges in one-dimensional bichromatic incommensurate potentials
Mobility edges in one-dimensional bichromatic incommensurate potentials
We theoretically study a one-dimensional (1D) mutually incommensurate bichromatic lattice system, which has been implemented in ultracold atoms to study quantum localization. It has been universally believed that the tight-binding version of this bichromatic incommensurate system is represented by the well-known Aubry-Andre model capturing all the essential localization physics in …