摘要
引入平均自关联函数Ｃ（ｔ），研究了一维，二维，三维Ｆｉｂｏｎａｃｃｉ准晶的波包扩散性质。数值计算表明，Ｃ（ｔ）的长时行为按幂率衰减，即Ｃ（ｔ）－ｔ，对于一维Ｆｉｂｏｎａｃｃｉ链，０〈δ〈１；
The diffusion properties of wave packets in 1D,2D and 3D Fibonacci
quasilattices (FQ) are studied by a site averaged autocorrelation function (t) .Numerical results
show that the long time behavior of (t) exhibits (t)～t - .For 1D Fibonacci chain,0< [AKδ-]
<1.However,for higher dimensional FQ,we find a crossover from [AKδ-] =1 to 0< <1 with
increasing the modulation strength V .
出处
《湘潭大学自然科学学报》
CAS
CSCD
1999年第1期123-136,共14页
Natural Science Journal of Xiangtan University
基金
国家自然科学基金,湖南省自然科学基金
