Time-dependent reflection at the localization transition

Article

关键词: ANDERSON LOCALIZATION;    WAVE LOCALIZATION;    LIGHT-SCATTERING;    SYSTEMS;    GAP;    DIFFUSION;    SPECTRUM;    EQUATION;   

DOI  :  10.1103/PhysRevB.97.104202

来源: SCIE

【 摘 要 】

A short quasimonochromatic wave packet incident on a semi-infinite disordered medium gives rise to a reflected wave. The intensity of the latter decays as a power law, 1/t(alpha), in the long-time limit. Using the one-dimensional Aubry-Andre model, we show that in the vicinity of the critical point of Anderson localization transition, the decay slows down, and the power-law exponent a becomes smaller than both alpha = 2 found in the Anderson localization regime and alpha = 3/2 expected for a one-dimensional random walk of classical particles.

【 授权许可】

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