节点文献

Observation of flat-band localized state in a one-dimensional diamond momentum lattice of ultracold atoms

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 Chao Zeng;Yue-Ran Shi;Yi-Yi Mao;Fei-Fei Wu;Yan-Jun Xie;Tao Yuan;Han-Ning Dai;Yu-Ao Chen;Hefei National Research Center for Physical Sciences at the Microscale and School of Physical Sciences,University of Science and Technology of China;Shanghai Research Center for Quantum Sciences and CAS Center for Excellence Quantum Information and Quantum Physics,University of Science and Technology of China;Hefei National Laboratory,University of Science and Technology of China;Department of Physics,Renmin University of China;Key Laboratory of Quantum State Constructuion and Manipulation (Ministry of Education),Renmin University of China;

【通讯作者】戴汉宁;

【机构】 Hefei National Research Center for Physical Sciences at the Microscale and School of Physical Sciences,University of Science and Technology of China； Shanghai Research Center for Quantum Sciences and CAS Center for Excellence Quantum Information and Quantum Physics,University of Science and Technology of China； Hefei National Laboratory,University of Science and Technology of China； Department of Physics,Renmin University of China； Key Laboratory of Quantum State Constructuion and Manipulation (Ministry of Education),Renmin University of China；

【摘要】 We investigated the one-dimensional diamond ladder in the momentum lattice platform. By inducing multiple twoand four-photon Bragg scatterings among specific momentum states, we achieved a flat band system based on the diamond model, precisely controlling the coupling strength and phase between individual lattice sites. Utilizing two lattice sites couplings, we generated a compact localized state associated with the flat band, which remained localized throughout the entire time evolution. We successfully realized the continuous shift of flat bands by adjusting the corresponding nearest neighbor hopping strength, enabling us to observe the complete localization process. This opens avenues for further exploration of more complex properties within flat-band systems, including investigating the robustness of flat-band localized states in disordered flat-band systems and exploring many-body localization in interacting flat-band systems.更多还原

【Abstract】 We investigated the one-dimensional diamond ladder in the momentum lattice platform. By inducing multiple twoand four-photon Bragg scatterings among specific momentum states, we achieved a flat band system based on the diamond model, precisely controlling the coupling strength and phase between individual lattice sites. Utilizing two lattice sites couplings, we generated a compact localized state associated with the flat band, which remained localized throughout the entire time evolution. We successfully realized the continuous shift of flat bands by adjusting the corresponding nearest neighbor hopping strength, enabling us to observe the complete localization process. This opens avenues for further exploration of more complex properties within flat-band systems, including investigating the robustness of flat-band localized states in disordered flat-band systems and exploring many-body localization in interacting flat-band systems.更多还原

【关键词】 diamond lattice； flat band； momentum lattice； localized state；
【Key words】 diamond lattice； flat band； momentum lattice； localized state；

【基金】 Project supported by the National Natural Science Foundation of China (Grant No.12074367);Anhui Initiative in Quantum Information Technologies,the National Key Research and Development Program of China (Grant No.2020YFA0309804);Shanghai Municipal Science and Technology Major Project (Grant No.2019SHZDZX01);the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No.XDB35020200);Innovation Program for Quantum Science and Technology (Grant No.2021ZD0302002);New Cornerstone Science Foundation

【文献出处】 Chinese Physics B ,中国物理B , 编辑部邮箱 ,2024年01期

【分类号】O73;O562
【下载频次】1

知网节下载

节点文献中：

本文链接的文献网络图示:

本文的引文网络

节点文献