Coherent forward scattering in two-dimensional disordered systems

被引：22

作者：

Ghosh, S. ^{[1
,2
,3
]}

Cherroret, N. ^{[2
]}

Gremaud, B. ^{[1
,3
,4
]}

Miniatura, C. ^{[1
,3
,4
,5
]}

Delande, D. ^{[2
]}

机构：

[1] Natl Univ Singapore, Ctr Quantum Technol, Singapore 117543, Singapore

[2] Univ Paris 06, Coll France, Ecole Normale Super, Lab Kastler Brossel,CNRS, F-75005 Paris, France

[3] CNRS UNS NUS NTU Int Joint Res Unit, UMI 3654, Merlion MajuLab, Singapore, Singapore

[4] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

[5] Univ Nice Sophia Antipolis, CNRS, INLN, F-06560 Valbonne, France

来源：

PHYSICAL REVIEW A | 2014年 / 90卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

ANDERSON LOCALIZATION; WEAK-LOCALIZATION; MATTER-WAVES; BACKSCATTERING; TRANSPORT; CONDUCTIVITY; STATISTICS;

D O I：

10.1103/PhysRevA.90.063602

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a detailed numerical and theoretical analysis of the recently discovered phenomenon of coherent forward scattering. This effect manifests itself as a macroscopic interference peak in the forward direction of the momentum distribution of a matter wave launched with finite velocity in a random potential. Focusing on the two-dimensional case, we show that coherent forward scattering generally arises due the confinement of the wave in a finite region of space, and explain under which conditions it can be seen as a genuine signature of Anderson localization.

引用

页数：12

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