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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.
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页数:12
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