Predicted mobility edges in one-dimensional incommensurate optical lattices: An exactly solvable model of Anderson localization

Details Predicted mobility edges in one-dimensional incommensurate optical lattices: An exactly solvable model of Anderson localization Predicted mobility edges in one-dimensional incommensurate optical lattices: An exactly solvable model of Anderson localization

2009-10-22

arxiv.org/abs/0910.4390v2

Phys. Rev. Lett. 104, 070601 (2010)

Physics

Condensed Matter

Other Condensed Matter

5 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.104.070601

Localization properties of non-interacting quantum particles in one-dimensional incommensurate lattices are investigated with an exponential short-range hopping that is beyond the minimal nearest-neighbor tight-binding model. Energy dependent mobility edges are analytically predicted in this model and verified with numerical calculations. The results are then mapped to the continuum Schrodinger equation, and an approximate analytical expression for the localization phase diagram and the energy dependent mobility edges in the ground band obtained.

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