Manifestation of quantum chaos in Fano-Feshbach resonances

被引：7

作者：

Augustovicova, Lucie D. ^{[1
]}

Bohn, John L. ^{[2
,3
]}

机构：

[1] Charles Univ Prague, Fac Math & Phys, Dept Chem Phys & Opt, Ke Karlovu 3, CZ-12116 Prague 2, Czech Republic

[2] NIST, JILA, Boulder, CO 80309 USA

[3] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

来源：

PHYSICAL REVIEW A | 2018年 / 98卷 / 02期

关键词：

STATISTICS; ATOMS;

D O I：

10.1103/PhysRevA.98.023419

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A model is presented that mimics the nearest-neighbor-spacing (NNS) distribution of chaotic molecules such as Dy-2 and Er-2 just below their dissociation threshold. In this model the degree of chaos is controlled by choosing suitable Hamiltonian matrices from random ensembles. It is found that, in versions of the model that are not completely chaotic, the NNS of observable Fano-Feshbach resonances exhibits greater level repulsion, hence more chaos, than the corresponding NNS of a typical energy spectrum of the molecule at a fixed magnetic field.

引用

页数：7

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