摘要
Based on the one-dimensional periodic and Fibonacci-like waveguide arrays,we experimentally investigate localized quantum walks(QWs),both in the linear and nonlinear regimes.Unlike the ballistic transport behavior in conventional random QWs,localization of QWs is obtained in the Fibonacci-like waveguide arrays both theoretically and experimentally.Moreover,we verify the enhancement of the localization through nonlinearity-induced effect.Our work provides a valid way to study localization enhancement in QWs,which might broaden the understanding of nonlinearity-induced behaviors in quasiperiodic systems.
作者
王立成
步鸿飞
陈阳
田振男
任希锋
Licheng Wang;Hongfei Bu;Yang Chen;Zhennan Tian;Xifeng Ren(State Key Laboratory of Integrated Optoelectronics,College of Electronic Science and Engineering,jilin University,Changchun 130012,China;CAS Key Laboratory of Quantum Information,University of Science and Technology of China,Hefei 230026,China;CAS Synergetic Innovation Center of Quantum Information Quantum Physics,University of Science and Technology of China,Hefei 230026,China;Hefei National Laboratory,University of Science and Technology of China,Hefei 230088,China)
基金
supported by the National Natural Science Foundation of China(Nos.61825502,62061160487,and 12204462)
the China Postdoctoral Science Foundation(Nos.2022M723061 and 2019M651200)
the Major Science and Technology Projects in Jilin Province(No.20220301002GX)
the Fundamental Research Funds for the Central Universities.
