arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1801.00403math-phcond-mat.stat-mechmath.MPnlin.SIquant-ph
收藏

可积量子台球的精确本征函数振幅分布

Exact eigenfunction amplitude distributions of integrable quantum billiards

Rhine Samajdar, Sudhir R. Jain

摘要:

精确的概率分布的本征函数,$Ψ(x, y)$,几个可积平面台球的振幅进行了分析计算,并显示具有奇异性在$Ψ= 0$,这种奇异性的性质是形状相关的。特别是,我们证明了矩形量子台球的分布函数是成比例的完整的椭圆积分,${\bf K}(1 - Ψ^2)$,并证明了它的普遍性,模弱依赖于量子数。另一方面,我们研究了不可分的,可积的三角形台球的低位状态,并发现其分布所描述的Meijer G-函数或某些超几何函数。我们的分析捕获了显着偏离高斯分布的混沌台球在其调查的波动的本征函数约$Ψ= 0$。

英文摘要:

The exact probability distributions of the amplitudes of eigenfunctions, $Ψ(x, y)$, of several integrable planar billiards are analytically calculated and shown to possess singularities at $Ψ= 0$; the nature of this singularity is shape-dependent. In particular, we prove that the distribution function for a rectangular quantum billiard is proportional to the complete elliptic integral, ${\bf K}(1 - Ψ^2)$, and demonstrate its universality, modulo a weak dependence on quantum numbers. On the other hand, we study the low-lying states of nonseparable, integrable triangular billiards and find the distributions thereof to be described by the Meijer G-function or certain hypergeometric functions. Our analysis captures a marked departure from the Gaussian distributions for chaotic billiards in its survey of the fluctuations of the eigenfunctions about $Ψ= 0$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑