Ratchet effect in the quantum kicked rotor and its destruction by dynamical localization

被引：18
|
作者：
Hainaut, Clement [1 ]
Rancon, Adam [1 ]
Clement, Jean-Francois [1 ]
Garreau, Jean Claude [1 ]
Szriftgiser, Pascal [1 ]
Chicireanu, Radu [1 ]
Delande, Dominique [2 ]
机构：
[1] Univ Lille, CNRS, UMR 8523, PhLAM Lab Phys Lasers Atomes & Mol, F-59000 Lille, France
[2] UPMC Sorbonne Univ, ENS PSL Res Univ, CNRS, Lab Kastler Brossel,Coll France, 4 Pl Jussieu, F-75005 Paris, France
来源：
PHYSICAL REVIEW A | 2018年 / 97卷 / 06期
关键词：
ACCELERATOR MODES; STANDARD MAP; CHAOTIC TRANSPORT; ATOM OPTICS; DIFFUSION; SYMMETRY; SYSTEMS;
D O I：
10.1103/PhysRevA.97.061601
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study experimentally a quantum kicked rotor with broken parity symmetry, supporting a ratchet effect due to the presence of a classical accelerator mode. We show that the short-time dynamics is very well described by the classical dynamics, characterized by a strongly asymmetric momentum distribution with directed motion on one side, and an anomalous diffusion on the other. At longer times, quantum effects lead to dynamical localization, causing an asymptotic resymmetrization of the wave function.
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页数：5
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