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1 量子与信信息科科学 南科大大高峰峰论坛 报告告摘要手册 大会会主席 : 俞大鹏执行行主席 : 赵予生 潘建伟何佳清 主办单位 : 南方科科技大学 物理系 量子科学与工程 研究所 2016 年 11 月 4 日 -6 日

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3 目 录 大会会主题报报告 黄 如院士 : 后摩尔时代新新器件研究究进展 1 刘 明院士 : 集成成电路发展展的挑战及应对策策略 2 郭光光灿院士 : 量子计算..3 孙昌昌璞院士 : 量子子物理的新新视野 -从信息 能源到生生命科学 5 潘建建伟院士 : 远距距离量子通通信进展 6 俞大大鹏院士 : 量子材材料研究究与展望. 8 I

4 大会分会会场报告 ( 以姓姓氏笔画画为序 ) 1. 蔡建明 : Dynamically Decoupling Protected Interrogation for Quantum Metrology 曹俊诚 : 太赫兹成像像与通信应应用研究 常 凯 : Semiconductor interface engineering towards topological phases 但亚平 :Self Assembly of Macromolecules for Single Atoms Control 段文晖 : Parameter Free Universality In Two Dimensional Materials 范桁 : Quantum Coherence And Uncertainty Relations: Theory And Experimentt 冯军 : Synthesis Off Novel Photocathode And Surface Study Using In Situ Atomic Force Microscope 龚新高 : Computational Studies of Novel Energy Materials: From interface to Extrinsicc Properties 郭国平 : 半导体量子子芯片实验验研究 何林 : Emergent Phenomen na in Graphene 何亮 : The Quasi 2D Quantum Oscillations of TopologicaT al Insulator ZrTe5 12. 贾金锋 : Observation of Majorana fermions in the vortex 江颖 : Exotic quantum states of protons in water probedd by STM 金贤敏 : Writing Photonic Lattice Chip and Quantum Simulation 李永庆 : Nanoscale spin correlations and colossal magnetoresistance in HgCr 2 Se 廖志敏 : 低维狄拉克克材料的电子输运运性质 刘畅 : ARPES investigation of selected topological materials 刘开辉 : 原位纳米光光谱学技术的发展展和应用 刘雄军 : Chiral Majorana modes protected by ann emergent 4D II

5 topologicall invariantt 刘玉玺 : 基于超导磁磁通量子子比特电路路的新物理 龙桂鲁 : Quantum Secure Direct Communication:Principles and Current Status 卢海舟 : Anomalous Phase Shift of Quantum Oscillations in 3D Topological Semimetals 卢明辉 : 光 声拓扑扑态研究 鲁大为 : Twelve Coherence Creation Supervised By A Quantum Computer 陆朝阳 : Creating Perfect Single Photons For Thee Demonstration Of Quantum Supremacy y 马雄峰 : From entanglement to quantum cryptography 吕力 : Search For Majoranaa Zero Modes In Josephson Devices Constructed On Bi2Te3 Surface 毛金海 : Manipulating Chargee And Spin At A Vacancy Site In Graphene 缪峰 : Electronic Transport and Device Applications of 2D Materials 石兴强 : Tuning The Spintronic Properties At Organic/Magnetic Metal Interfaces 宋凤麒 : 拓扑绝缘体体表面态的量子霍霍尔效应和和普适电导导涨落实验研究 宋祎璞 : Coulomb Oscillations s In A Gate Controlled Few Layer Graphene Quantum Dot 孙麓岩 : Superconducting circuits for quantum information processing 万贤纲 : Novel properties of 5d transition metal compounds 万义顿 : Experimental Identification of Non Abelian Topological Orders on a Quantum Simulator 汪子丹 :Realizing And Manipulating Novel Topological Semimetal III

6 Bands With Superconducting Quantum Circuits 王干 :Interfacial Supercond ductivity in Molecular Beam Epitaxy Grown Ultrathin Bi 2 Te 3 /FeTe Bilayers 王浩华 : Solving Linear Systems of Equations with A Four Qubit Superconducting Circuit 王建农 : The Origin of Bias Independent Conductance Plateaus and Zero Bias Conductan nce Peaks in Bi2Se3/ /Nbse2 Hybrid Structures 王 41. 王 42. 王 健 : Discovery Of Quantum Griffiths Singularity And Tip Induced Topological Superconductivity 宁 : Observation Of The Quantum Hall States In Few Layer Transition Metal Dichalcogenides 欣 : Composite Pulses For Robust Control Off Spin Qubits 王欣然 : Exploring Organic Semiconductors At The Two Dimensional Limit 王雪华 : Strong Light Matter Interaction in Non Cavity Limit Plasmonic Nanosystem at Quantum Optics 45. 翁文康 : Universal Bound of Sampling Boson andd Unification of Gaussian Boson Sampling 吴孝松 : Thermoelectric Signature Of The Chiral Anomaly In Cd3As 夏钶 : Computational spin caloritronics 肖江 : Magnetic Wafer Based Magnonics( 自旋旋波电子子学 ) 徐洪起 : Topological Superconducting Quantum Devices Made from Semiconductor Nanostructures 徐士杰 : Distinctive Signatures of Photon Emission of Individual InGaN/GaNN Quantum Dots 许金时 : Experimental Simulation The Exchange Of Majorana Zero Modes 薛正远 : Holonomic Quantum Computation All Resonant Control 姚望 : Nano Patterned Superstructures Of Topological Insulators In IV

7 The Moire Superlattices Of Vdw Heterobilayers 游建强 : Magnon Kerr Effect In A Cavity Quantum Electrodynamics System 翟荟 : Out of Time Orderedd Correlation and Entanglement Entropy 张广宇 : Zigzag 石墨墨烯纳米带带的边缘态 赵建华 : Perpendicularly Magnetized Mn Based Binary Films Compatible With Semiconductor In Structure Andd Technique 赵巍胜 : Engineeringg the Spinn Orbit Interaction for Low Power Computing 赵悦 : Exploring the Physicss of Graphene with Local Probes 周树云 : New Topological Phases In Transition Metal Dichalcogenides 周晓祺 : The Simulation Of Boson Sampling Withh Qubit Systems 朱诗亮 : Maxwell Quasiparticles Emerged in Optical Lattices 朱晓波 : 纵场控制的的量子开关和多比比特量子芯芯片 V

8 后摩尔时代代新器件件研究进进展黄如北京大大学摘要 : 随着大规模集成电电路技术的的持续发展, 来自短短沟效应 量子隧隧穿以及寄寄生效应应等问题的的挑战使得得传统微电电子器件技技术越来越越难以以满足 IC 技术持续续推进的要要求, 特别别是日益严严峻的能耗问题已已经成为为延续摩尔尔定律的最大瓶颈, 在后摩尔时代采采用新器件件技术成为为必然 面向不同同集成电路路应用如何何发展适适合未来微微电子产业业需求的纳纳米尺度度新器件成成为当前前热点问题题 报告简简单介绍后后摩尔时代代 IC 技术术存在的的挑战 发发展趋势和和特点, 重点介绍面向不同同应用的器器件在结构构材料和和工作机理理上发生生和可能发发生的变化, 讨论新新器件技术术在高能效效智能化化电路系统统发展中发挥的作作用 报告人简简介 : 黄如, 中国国科学院院院士, 北京大学学教授 1991 年毕毕业于东南南大学电子工程系, 1994 年获该该校硕士学学位,19977 年于北京京大学获博士学学位 现任任北京大大学信息科科学技术学学院院长, 微纳纳电子研究院院长长 研究方方向 :SOI 技术 纳 米量量级新结构构器件及及制备工艺艺技术, 射频电路技技术研究, 模型模拟 1

9 集成电路发发展的挑挑战及应应对策略刘明中科院微电电子所摘要 : 集成电路经经过 60 年的快速发发展, 已经经成为电子子信息产业业的基础础和国家信信息安全全的根本保保障 集成成电路在不不断缩小尺尺寸 提高高性能和和降低成本本的发展道路日趋趋成熟,Scaling Down 严峻面面临挑战 ; 未来集集成电路进进一步发发展呈多元元化趋势 本报告将将讨论微电电子的发展 现在在 面临挑挑战及机机遇 报告人简简介 : 刘明, 中国科科学院院院士, 中国国科学院微微电子研究究所研究员, 从事事微电子科科学与技术术的研究, 研究兴趣趣主要是存储器机机理模型 材料结构构 核心共共性技术和芯片集集成等 973 项目首首席科学家家 国家杰杰出青年基基金获得得者和基金金委创新群群体负责人人 担任 Appliedd Physics A 的编辑辑 中国国科学 编委 Scientific Reports 的编编委会委员员等 2

10 量子物理理的新视野 - 从信信息 能源到生命命科学孙昌璞北京计计算科学研研究中心摘要 : 本报告告结合报告告人个人的的研究工作, 系统地地评述近年来量量子物理基基础研究的前沿问问题和发展展趋势 : 一方面, 量量子力学基本问问题的研究究已经走走出原来的的哲学逻辑辑思辨的层层面, 在面面临着被实验全全面检验的同时, 正在突破破哥本哈根根诠释的窠窠臼, 孕育育着观念的变革 ; 另一方方面, 量子物理与与信息 生生命和能源源科学交叉叉, 产生学科新新的生长点点 例如, 生命体体系量子效效应的研究究可能会成成为一个蓬勃发发展的前沿沿科学领领域 深入入研究光合合作用过程程中的量子子相干效应 机, 将有助于于设计具有高效光光电转换仿仿生功能的的固体人工工器件, 超 越传传统硅基太太阳能电池的光电电转换效率 ; 生物指指南针的研研究可以启发重重大需求方方面的量量子感知和和量子陀螺螺研究 报告人人简介 : 孙昌璞, 中国科学院院院士, 发展展中国家科科学院院士, 中国国工程物理理研究院北京京计算科学学研究中心教授 毕业于东东北师大本科, 于南开开大学获获博士学位位 曾任东东北师大教授, 中科科院理论所所研究员 获得过国国家自然科学学二等奖和和美国 ISI 经典引引文奖 等奖励以及及全国先进进工作者和等荣荣誉称号, 多次被被评为中科科院 优秀秀导师, 指导的研研究生有 2 人 3

11 获全全国 百篇篇优秀博士学位论论文 多人人获得 中国科学院优秀博博士论文 和科学学院院长特别奖等. 他长期从从事量子物物理 数学物理及及量子信信息基础理理论研究, 发表论论文 300 余篇, 被引用 余余次,h 因子 53 有不少工工作得到国际承认, 如 q 变形玻色子子工作是国国际上本领域开开创性工作作之一 科学 评评述中国科科学发展提提及了这个个工作 他预言言的量子临界系统统动力学不不稳定效应应和人工循循环原子结结构得到德国等等多个实验验证实 他还研究究了低维纳纳米结构中中单光子的的传输和探测, 近期开始始探索生生命过程中中的量子相相干效应, 如人工光光合作用和生物物迁徙的量量子指南南针 4

12 量子计算 郭光灿中国科学技术术大学摘要 : 本报告告将简述量量子计算机机诞生背景景 基本原原理 量子编码码与容错编编码以及量子芯片片发展状况, 最后对对我国发展展现状作个评述述 报告人简简介 : 郭光灿, 第三世界科科学院院士, 中国科科学院院士, 中国国科学技术术大学教授授 现任中国科学院量子信信息重点实实验室主任任 中国物物理学会会理事, 中国光学学学会理事, 全国量子子光学专业委员会会主任 ; 国家科技部 973 项目 量子通通信与量子子信息技术 首席科科学家, 中科院重重要方向项项目首席科科学家, 国家基金委委创新群体学术术带头人 国家科科技部中长长期规划 量子调控 重大项项目 - 量子通通信与量子子计算的物理实现 首席科科学家 ; 荣获国家自自然科学二等奖, 何梁何何利奖, 安徽省自自然科学一一等奖, 安徽省 2007 年重大科技成成就奖, 被评选为中中国科学院院先进工作者 教育育部全国优优秀教师师 主要要从事量子子光学 量子密码码 量子通通信和量子子计算的理理论和实验研究究 5

13 远距离离量子通信信进展潘建伟中国科学技术术大学摘要 : 量子力力学是近代代自然科学学技术和社社会经济发发展的支支柱 作为为量子调控的第一个个系统性应应用, 量子子信息科学 ( 包括量量子通信 量子计算算与模拟拟和量子精密测量等 ) 可以在在确保信息息安全 提提高运算速速度 提升升测量精度度等方面面突破经典信息技术术的瓶颈, 为社会经经济发展所所面临的多多个重大问问题提供革革命性的的解决途径径 量子调控控和量子信信息技术的的迅速发展展标志着第第二次量子革命的的兴起 在在量子通信方面, 利用成熟的的光纤技术术和丰富的的光纤资源, 目前的的量子通信信技术已已可以实现城域范围围内的实用用化, 世界界各国也已已建设了多多个量子通信网络络 我国国在量子通通信技术和和应用方面面处于国际际领先地位, 在国际上率先先实现了安全通信距距离突破 100 公里的的光纤量子子通信 建建成国际上上首个全通通型量子通通信网络 首个规模模化城域量量子通信网网络, 并初初步应用于于国防 政政务 金融融等领域域的信息安全 今年年底, 总长长约 2000 公里的远远距离光纤纤量子通信信骨干网网络 京沪干干线 将建 成, 实现现不同应用用模式的示示范 利用用卫星对自自由空间光光量子传输进行中中转, 是实现远距离离量子通信信的另一有有效途径 ; 目前, 我国已成功功发射国际上首颗颗量子科学实验卫星, 将首次次实现星地地量子通信, 以及地地面城域量量子通信网络在卫卫星中转下的互联, 结合京沪沪干线将初初步构建我我国天地一体的广广域量子通通信网络基基础设施 6

14 报告告人简介 : 潘建伟, 1992 年毕业于中中国科学技技术大学近代物物理系,1995 年获该该校理论物理硕士士学位,1999 年获得奥地地利维也纳纳大学博士士学位,2005 年加加入九三学学社, 2008 年入入选中组部部首批 千人计划,2011 年当选为中中国科学院院士士 长期从从事量子光光学 量子子信息和量量子力学基基础问题检验等等方面的研研究, 对量量子通信等等研究有创创新性贡献, 是该领领域的国国际著名学者, 有关关实现量子子隐形传态态的研究成成果入选美美国 科学学 杂志 年度十十大科技进展, 并同同伦琴发现 X 射线线 爱因斯斯坦建立相相对论等影影响世界的重大研研究成果一起被 自然 杂志志选为 百年物理学 21 篇经经典论文 其研究成成果曾 6 次入选两院院士评评选的 中国年度十十大科技进进展新闻 5 次入选选欧洲物物理学会评评选的 年度物理学学重大进展 4 次入入选美国物物理学会会评选的 年度物理理学重大事事件 7

15 量子材材料发展与展望俞大鹏南方科技技大学 / 北京大学摘要 : 以能带理论为代表的固固体物理学学帮助人们打打开了认识识一系列纷繁繁多样的的量子材料料的大门 量量子材料的研研究把人们们探索自然 创造知识识的能力延伸伸到介于于宏观和微微观物体之间间的中间领领域 2004 年英英国的 Geim 和 Novoselov 等人发发现石墨烯不不仅可以稳稳定地存在于于衬底上, 而且表表现出优越的的物理性质 [1] 石墨烯是由碳原原子组成的的二维蜂窝状状单原子子层材料, 是目前发现现的最薄 最最硬 最强强 最导热 最导电的的一种新型量量子材料, 是 新材料之王 在石墨烯烯及类石墨墨烯二维材料料的所有可可能应用中, 电子芯芯片是真正正体现石墨烯烯独特而优优异性质的颠颠覆性应用 要真正把把石墨烯做成成未来电电子芯片材材料, 还需要要将石墨烯单单晶的尺寸寸做得足够大, 将石墨墨烯单晶的生生长速度度提高 [2], 将 CVD 方法法制备的石石墨烯缺陷密密度降到最最低, 保证其其超高迁移率, 将石石墨烯可控控打开合适的的带隙 (300 mev 以上, 开关比 >10 5 ) 外尔费米米子的一个重重要性质是是手型异常 [3] 我们通通过研究三三维狄拉克材材料 Cd3As2 的热电电势, 发现平平行磁场下下的负磁热电电势行为, 且伴随着高高场下的变号, 分析析表明这是是手性异常的的表现, 从而而给出了外外尔费米子这这一奇异行行为的热电势势证据 [4] 针对理理论预言的外外尔费米子子的诸多奇特性质, 通过对外尔尔半金属多种种性质的的研究, 揭示示其手性异异常等效应, 将是未来来研究的重点点 同时发发现更多的外外尔半金金属, 以及及第二类外尔尔半金属 二维晶体体材料展现出丰富多彩彩的性质 最近, 超导导电性 电电荷密度波等等集体效效应也在二二维晶体中被被观察到 [5] 然而, 凝聚态物理理中的一些些重要现象, 如二维维拓扑绝缘缘体, 磁性等, 尽管被大大量理论预预言在二维晶体中存在在, 但还未能能在得到到实验证实实 a) 拓扑绝绝缘体是近年来人们关关注的热点之一, 三维维拓扑绝缘体, 已经经被大量发发现 二维拓拓扑绝缘体的材料却局局限于少数复杂的异质质结构 在预预言的许许多基于二二维晶体的拓拓扑绝缘体体中,ZrTe 5 受到广泛关关注 [6] 有证证据表明 ZrTe 5 8

16 块材材具有三维维狄拉克的能能带 我们首首次研究了了薄膜的电输输运行为, 证明其中有有两个能能带, 且伴随厚度的减减小, 体系经经历一个能能带相对移动动的变化 未来研究将将主要集集中在寻找找和证实基于于二维晶体体的二维拓扑扑绝缘体, 尤其是具有有较大能隙且且载流子子浓度低的的材料 在此此基础上研研究一维边缘缘态的性质质并构建自旋旋电子学器器件 b) 磁性材料在在当代科技技中有广泛应应用, 二维维磁性更是凝凝聚态物理理发展进程中中的一个个关键问题题 因此, 在二维晶体中中实现磁性, 无论从应应用还是基基础物理角度度都有重重大意义 我们通过对对过渡金属属硫族化合物 V 5 S 8 的反反常霍尔效效应的研究, 发现厚厚度的减小小导致一个反反铁磁到铁铁磁的转变, 证明少层 V 5 S 8 在低低温下具有铁铁磁性, 该项研究究打开了磁性性二维晶体体的一扇门 我们相信, 未来研究将会发现现更多性质更优异的量量子材料 同时受益于于量子材材料的可调控性, 期望望将会在自旋旋电子学方方面有重要应应用 量子子材料这个全全新的领领域必将主主导未来数十十年的技术术创新路径, 深刻影响响科技发展进进程 References: [1] Novoselov K S, Geim A K, Morozov S V et al. Electric field effect in atomically thin carbon films. Science 306, [2] Xu X, Zhang Z, Qiu L et al. Ultrafast growth of single crystal graphene assisted by a continuous oxygen supply. Nature Nanotechnology, DOI: /nnano [3] P. Hosur and X. Qi, Recent developments in transport phenomena in Weyl semimetals, C. R. Phys. 14, ( 2013). [4] Li, Cai Zhen; Wang, Li Xianthe chiral anomalyy in individual Cd3As2 nanowires, Nature Communications 6: 10137, 2015;Li Xian Wang,Cai Zhen Li,Da Peng Yu,Zhi Min Liao, Liu, Haiwen; et al., Giant negative magnetoresistance induced by Aharonov Bohm oscillations in Dirac semimetal Cd3As2 nanowires, Nature Communications 7, 10769,,2016 ;Z. Jia, C. Li, X. Li, J. Shi,, Z. Liao, D. Yu, and X. Wu, Thermoelectricc signature of the chiral anomaly in Cd3As2,, Nature Communications 7, 13013(2016). [5] J. M. Lu, O. Zheliuk, I. Leermakers, N. F. Q. Yuan, U. Zeitler, and etc., Evidencee for two dimensional Ising superconductivity in gated MoS2, Science 350, 1353 (2015). [6] H. Weng, X. Dai, and Z. Fang, Transition Metal Pentatelluride ZrTe$_5$ and HfTe$_5$: A Paradigm for Large Gapp Quantum Spin Hall Insulators, Phys. Rev. X 4, (2014). 9

17 报告人简介 : 俞大鹏, 1959 年 3 月 16 日出生于于宁夏中卫 ; 法国南巴黎黎大学 (Universit é de Paris, Orsay) 固体物理 实 验室 (Laboratoire de Physique des Solides) 博士 ; 2000 年获得国国家杰出青青年科学基金 ; 2002 年获得教育育部 长江学学者 特聘聘教授 ;2005 年获得教教育部长江江学者与创新新团队计划划 -- 准一维维纳米结结构与低维维物理 项目目支持 ;2015 年当选为为中国科学学院技术学部部院士 俞大鹏院院士长期从事纳米线材材料中关键键基础科学问问题的研究究, 为我国纳纳米线材材料科学研研究进入国际际先进行列列做出了重大大贡献 : 包括括解决了规规模 可控制制备半导导体量子线线材料的难题题 深入揭揭示了半导体体量子线结结构特有的新新颖物理现现象 系统统发掘了半半导体量子线线的若干重重大应用特性, 发现了若若干重要的的纳米线器件件效应, 发明了一一系列纳米加加工与精确确操控技术, 申请国家家发明专利 20 余项 ( 含多项国国际 PCT 专利 ), 引领领了半导体纳纳米线材料料的应用基础础研究 近近十年来, 俞大鹏院院士把研究究的重点放在在量子材料料的可控制备, 特别是是量子输运性性质研究方方面, 并且且取得长足足的研究进展展 基于所取取得的研究成成果, 俞大大鹏院士共计计发表 3000 余篇论文, 含 Nature 子刊 Physical Review Letters Applied Physics Letterss Advanced Materials Nano Letters 等顶级专业业刊物论文 100 余篇, 被同行参考他引一万万余次,h 因子为 69 俞大鹏鹏院士曾以第第一完成人人获得了 2004 年度教育育部提名自自然科学一等等奖和 2007 年获国国家自然科科学二等奖 2016 年中中国真空科技技成就奖等等 在世界著著名出版版公司 Elsevier 发布布的 年度在在全球具有重重要学术影影响力的中国国高被引引学者 (Most Cited Chinese Researchers) 榜单中, 俞大鹏院士士连续进入 物理与与天文学科 前三名 ; 被评选为 2015 年度度北京大学研研究生 十十佳导师 10

18 俞大大鹏团队近近期代表性性论文目录 : 1. Xiaozhi Xu, Zhihong Zhang, Lu Qiu, Jianing Zhuang, et al., Ultrafast Growth of Large Single-crystal Graphenee Assisted by Continuous Oxygen Supply, Nature Nanotechnoloy, in press, Thermoelectric signature of the chiral anomaly in Cd3As2, Zhenzhao Jia, Caizhen Li, Xinqi Li, Junren Shi, Zhimin Liao, et al., Nature Communications 7, accepted and in press, Aharonov Bohm oscillations in Dirac semimetal Cd3As2 nanowires,li-xian Wang, Cai-Zhen Li, Da-Peng Yu,Zhi-Min Liao,Nature Communicationss 7, 10769, A polymer scaffold for self-healing perovskite solar cells, Zhao, Yicheng; Wei, Jing; Li, Heng et e al., Nature Communications 7 : 10228, Giant negative magnetoresistance induced by the chiral anomaly in individual Cd3As22 nanowires,,li, Cai-Zhen; Wang, Li-Xian; Liu, Haiwen; et al., Nature Communications 6: 10137, Electrical control of intervalley scattering in graphene via the charge state of defects, Yan, Baoming; Han, Qi; Jia, Zhenzhao et al., Physical Review B 93: , Vibrational spectroscopy at electrolyte/electrode interfaces with graphenee gratings,bi ie, Ya-Qing; Horng, Jason; Shi, Zhiwen et al., Nature Communications 6: 7593, Chen, Jing-Jing; Meng, Jie; Zhou,, Yang-Bo; ett al., Layer-by-layer assembly of vertically conducting graphenee devices, Nature Communicationss 4, 1921, Yu, Haiming; Granville, S.; Yu, D. P.; et al., Evidence for Thermal Spin-Transfer Torque, Physical Review Letters 104, , Zhu, X. L.; Ma, Y.; Zhang, J. S.; et al., Confined Three-Dimensional Plasmon Modes inside a Ring-Shaped Nanocavity on a Silver Film Imaged by Cathodoluminescence Microscopy, Physical Review Letters 105, , Liao, Zhi-Min; Wu, Han-Chun; Kumar, Shishir; et al.,large Magnetoresistance in Few Layer Graphene Stacks with Current Perpendicular to Plane Geometry, Advanced Materials 24: , Han, Xiaobing; Kou, Liangzhi; Zhang, Zhuhua; et al., Strain-Gradient Effect on Energy Bands in Bent ZnO Microwires, Advanced Materials 24: , Bie, Ya-Qing; Zhou, Yang-Bo; Liao, Zhi-Min; et al., Site-Specific Materials 23: 3938, Transfer-Printing of Individual Graphenee Microscale Patterns to Arbitrary Surfaces, Advanced 14. Bie, Ya-Qing; Liao, Zhi-Min; Zhang, Hong-Zhou; et al., Self-Powered, Ultrafast, Visible-Blind UV Detection and Optical Logical Operation based on ZnO/GaN Nanoscale p-n Junctions. Advanced Materials 23: 649, Bie, Ya-Qing; Liao, Zhi-Min; Wang, Peng-Wei; et al., Single ZnO Nanowire/p-typee GaN Heterojunctions for Photovoltaic Devices and UV Light-Emitting Diodes, Advanced Materials 22: 4284,, Zhu, Xinli; Zhang, Yang; Zhang, Jiasen; J et al., Ultrafine and Smooth Full Metal Nanostructures for Plasmonics, Advanced Materials 22: 4345, Han, Xiaobing; Kou, Liangzhi; Lang, Xiaoli; et al., Electronic andd Mechanicall Coupling in i Bent ZnO Nanowires, Advancedd Materials 21: 4937, Li, Heng; Zhao, Qing; Wang, Wei; et al., Novel Planar-Structure Electrochemical Devices for Highly Flexiblee Semitransparent Power Generation/Storage Sources, Nano Letters 13: , He, Li; Liao, Zhi-Min; Wu, Han-Chun; et al., Memory and Threshold Resistance Switching in Ni/NiO Core-Shell Nanowires, Nano Letters 11: , Zhu, Xinli; Zhang, Jiasen; Xu, Jun; J et al., Vertical Plasmonic Resonant Nanocavities, Nano Letters 11: ,

19 1. 蔡建建明 : Dynamically Decoupling Protected Interrogation for Quantum Metrology Yu Liu 1, Zijun Shu 1, Martin B. Plenio 2 and Jianmingg Cai( 蔡建建明 ) 1* 1 School of Physics & Center for Quantum Optical Science, Huazhong University of Science and Technology, Wuhan , P. R. China 2 Institut fuer Theoretische Physik & IQST, Albert-Einstein Allee A 11, Universitaet Ulm, Ulm, Germany Abstract: Quantum enhanced sensing and metrology provides a powerful tool for the precise measureme ent of physical parameters that is applicable in many areas of science and technology. The achievable sensitivity in quantum enhanced metrology scales s as a function of the number N of employed quantum systems. Quantum mechanics allows to achieve a 1/N-scaling knownn as Heisenberg limit that surpasses the 1/ N shot noise limit l of classical statistics. Here, we propose a combination of adiabatic quantum state preparation and dynamically decoupling protected readout to demonstrate theoretically that itt can achieve the Heisenberg limit inn sensing and metrology applications, without resorting to quantum entanglement for quantum resource. The proposed protocol benefits from the energy gap protection against noise, and is feasible with the current state-of-art quantum engineering technology. 12

20 2. 曹俊俊诚 : 太赫赫兹成像像与通信应应用研究 曹俊诚中国科科学院太赫赫兹固态技术术重点实验验室, 中国国科学院上上海微系统与与信息技术术研究所, 上海, jccao@mail.sim.ac..cn 摘要 : 近些些年来, 太赫兹 (THz) 成像技术 通信技技术以及光光谱技术发展展迅速 THz 成像技技术在公共共安全 生物物医学 工工业监控和无无损检测分分析等方面的的应用研研究引起了科研人员广广泛关注 利用 THz 波可以穿透透许多在可可见和红外波波段不透透明的材料, 以及成像像分辨率高等特点, 开发可在无损损检测 质质量控制和国国家安全全等领域获获得实际应用用的成像系系统, 成为研研究的主要目标 同时时,THz 波也也适合于于信息领域域的大容量信信号处理 与宽带高保保密的数据据通信等 THz 辐射射源与探测器器是 THz 频段应用的关键器件 在众多 THz 辐射的产产生方式式中, 基于于半导体的 THz 量子级级联激光器 (QCL) 由于其能量量转换效率高高 体积积小 轻便和和易集成等等优点, 成为为本领域的的研究热点之之一 THzz 量子阱探测测器 (QWP) 是红红外量子阱探探测器向 THz 波段的延伸, 是一一类重要的 THz 辐射探探测器 近年来, 我们从理论上上和实验上上深入研究了 THzQCLL 和 THzQWP 器件物理理 材料料生长 器件制备和表表征, 并实现现了基于 THzQCL 和 THzQWPP 的成像及通通信演示示 同时, 我们在国家家重大科学仪仪器设备开开发专项的支支持下, 研研制了基于 THz 技术术的 THz 成像 成谱技技术的危险险品分析仪 本文重点点报道了上述述进展 13

21 3. 常凯 : Semiconductor interface engineeringg towards topological phases Kai Chang( 常凯 ) 1SKLSM, Institute of Semiconducto ors, Chinese Academy of Science Beijing Abstract: Topological insulating i and semimetal phases havee aroused intense interests in condensed mattered physics in i recent years. However, the reportedd materials possess topological phases are majorly composed of heavy elements with rare abundances. It has been proposed that the intrinsic polarization of GaN/InN/GaNheterostructures can be b utilized to simultaneously reduce the energy gap, enhance the SOI,and finally driving the system to a TI state [1]. Inspired by this proposal, we promoted investigate objectives into commonly-used semiconductors,, and demonstrated that, utilizing giant electric fields generated by charge accumulation at GaAs/Ge/GaAs opposite semiconductor interfaces and band folding, the interface engineeringg can reduce the sizable gap in Ge,, induce largee spin-orbit interaction, and drive Ge into a topological insulating phase [2]. In addition, the similar design can be applied in two-dimensional materials. We investigated Graphene/BN in-planeheterostructures by systematically considering possible interface configurations. Ourr results reveal that interface has significant impact on electronic properties. Specifically, for heterostructure res with a zigzag type of interface, electronic states are found to be spin-polarized, and a half-metallic phase emerged. For heterostructures with an armchair type of interface, electronic states display a robust semiconducting behavior [3]. Very recently, we found out that, the t interface engineering can not onlyy induce topological insulator phase with a 50 mev nontrivial band gap but also Dirac semimetal phase in semiconductor heterostructures and superlattices [4]. Thee interface engineering provides a unique way to realize novel phase transitions in commonly-used semiconductors and suggests broad promising applications of well-understoodsemiconductors in virginal areas in the future. References: [1].M. S. Miao, Q. Yan, C. G. Van de Walle, W. K. Lou, L. L. Li, andd K. Chang, Phys. Rev. Lett. 109, (2012). [2].Dong Zhang, Wenkai Lou,, Maosheng Miao, Shou-cheng Zhang, and Kai Chang, Phys. Rev. Lett. 111, (2013). [3]. Dong Zhang, Dong-Bo Zhang, Fuhua Yang, Hai-Qing Lin, Hongqi Xu and Kai Chang, 2D MATERIALS 2, (2015).( [4]. J. P. Sun, J. J. Zhu, Dong Zhang, Kai Chang, submitted. 14

22 4. 但亚平 :Self-Assembly of Macromol lecules for Single Atoms Control Yapingg Dan( 但亚亚平 ) UM SJTU Joint J Institute, Shanghai Jiao Tongg University Abstract: Researchers at IBM first demonstrated the manipulation of xenon atoms at nickel substrate by using scanningg tunneling microscopee (STM) in In recent years, this technology was applied to control single dopant atoms att the surface of silicon substrates, forming transistorss and quantum computing circuits. However, the technology does not fit for mass production of single atom devices and circuits. In this talk, I propose to control single dopant atoms at largee scale by self assembly of macromolecules. Each of the synthesized macromolecules carries only one phosphorus atom. The molecules aree immobilized on the patterned silicon surface by forming covalent bonds with silicon.. The molecule carriedd phosphorus dopantss are thermally driven into the silicon substrate and electrically activated byy rapid thermal annealing. Low temperature Hall measurements and deep level transient spectroscopy are employed to investigate the electronic properties of doped substrates. The realization of single dopant atoms at large scale s is still in progress. Bio Bio.: Dr. Yaping Dan is currently a tenure track associate professor at UM SJTU Joint Institute, Shanghai Jiao Tong University. He receivedd the Bachelor from Xi an Jiaotong University, Master s degree from Tsinghua University and PhD degree from f the University of Pennsylvania. He joined the UM SJTU Joint Institute as a faculty member in 2012 after finishing his postdoctoral research at Harvardd University. He won the 1000 Young Scholars award and Shanghai Pujiang Talent Program Award. 15

23 5. 段文晖 : Parameter-Free Universality Two-Dimensional Materials In Zeyu JIANG 1, Zhirong LIU 2, Yuanchang LI 3, Wenhui DUAN( 段段文晖 ) 1 1 Department of Physics, Tsinghua University, Beijing , China 2 Colledge of Chemistry and Molecular Engineering, Peking University, Beijing , China National Center for Nanoscience and Technology of China, Beijing , China 3 N Abstract: Parameter-free universal phenomena are amazing a while rare in the material science which are usually associated with profound physics behind, e.g., the topology for quantized conductance e, the fine structure constant for opacity, the self-organized criticality for f 1/f noise. Here we show that there exists such a material parameter-free behavior in i two-dimensional (2D) semiconductors. That is a robust linear scaling law between the bandd gap (E g ) and the exciton binding energy (E( b ), namely, E b E g /4, regardless of theirr lattice configuration,, bonding characteristic, as well as the topological property, which is never observed in their three-dimensional counterparts. The underlying mechanism is revealed based on o the fact that both Eb and E g can be generally expressed as a simple function of the 2DD polarizability. This work adds an example to the rare universal phenomena in condensed matter physics and materials science that do not depend on material parameters, and even the fundamental constants. 16

24 6. 范 桁 : Quantum Coherence And Uncertaintyy Relations: Theory And Experim ent Heng Fan( 范桁 ) 1 Institute of Physics, Chinese Academy of Sciences, Beijing Abstract: Quantum coherencee is the fundamental reason for the significant phenomena differing from our everyday life such as uncertainty principle, entanglement and contextuality in quantum mechanics. By quantifyingg coherence, we observe that quantum coherence as resource should satisfy relations r due to uncertainty principle in entropic representation. Experimentally, we demonstrated e the coherence resource and entropic uncertainty relations in three measurements bases by a natural three-dimensional solid-state system: the nitrogen-vacancy (NV) center in pure diamond. The experimental data agrees well with theoretical expectation. The natural indivisible three dimension of spin-1 quantum state shows the principle of coherence and superposition not resulting from entanglementt or non-locality. The entanglement-enhanced phase estimation in NV-diamond system m will also be reported. References: [1]. G. Q. Liu, Y. R. Zhang, Y. C. Chang, J. D. Yue, Heng Fan* and X. Y. Pan*, Nature Communications 6, 6726 (2015). [2]. F. Franchini*, J. Cui, L. Amico,, Heng Fan* *, M. Gu, L. C. Kwek, V. Korepin* and V. Vedral,Phys. Rev. X 4, (2014). [3]. Heng Fan, Y. N. Wang, L. Jing, J. D. Yue, H. D. Shi, Y. L. Zhang, and L. Z. Mu, Phys. Rep. 544, (2014). [4]. D. Wang, Z. Liu*, J. P. Cao and Heng Fan*, Phys. Rev. Lett. 111, (2013). [5].J. Cui, M. Gu, L. C. Kwek, M. F. Santos, Heng Fan and V. Vedral, Nature Communications 3, 812 (2012). 17

25 7. 冯军 : Synthesis Of Novel Photocat hode And Surface Study Using In-Situ Atomic Force Microscope Jun Feng( 冯军 ) Advanced Light Source, Lawrencee Berkeley National Laboratory, University of California at Berkeley Abstract: The development of high performance photocathodes is a key challenge for next generation light sources such as highh repetitionn rate Free Electron Laser (FEL), energy recovery linac (ERL),, linac-based inverse Compton C sources, and high brightness electron beam,, detectors application, etc. Among variouss photocathodes such as traditional metal photocathodes, plasmon-enhanced photocathodes, and surface-state emitted electron cathodes, the synthetic alkali antimonidee photocathodes have shown great promise for the next generation light source application because of their high quantum efficiency (QE),, low thermal emittance, fast response time and response in the visible light wavelength range. It is well-known that the fabrication of multi-alkali cathodes is difficult and complicated. We havee developedd a new method using simultaneous element evaporation to grow green sensitive, loww emittance and highly efficient photocathodes. In myy talk, I will introducee our photocathode lab and report on the cathode fabrication, QE, transverse emittance measurement and the study of cathode surface using in-situu atomic force microscope. 18

26 X.G. Gong( 龚新新高 ) Key Laboratory for Computational Physical Sciences, Department of Physics, Fudan University Abstract: With the rapid r development of the modern computational techniques, computational studies on the condensed matter, simulating specific dynamics processes and designing desired materials, becomes feasible task andd actually have played a more and more important i role in materials science. In this talk, I will report our recent progress on the interface in the solar cell of the quaternaryy semiconductor alloy. By carefully analyzing the ntrinsic defects, we propose Cu grading with Ag near the interface in the CZTS solarr cell, which would increase the output voltage. By proposing the self-passivation rule, we clearly understand how to passivate defect state in the grain boundary, which would eliminate the recombination center and thus increase the current. Finally, I will briefly report our new results on thee recombination rate in the solar cell by developingg a new algorithm which makes the calculation feasible in the realistic materials. References: [1]. [2]. [3]. [4]. [5]. 8. 龚新高 : Computa ational Studies off Novel Energy Materials: From interfacee to Extrinsic Properties Z.K. Yuan, et al., ADVANCED FUNCTIONAL MATERIALS, 25,, 6733(2015) C.Y. Liu, et al., PHYSICAL REVIEW B, 90, (2016) Z.K. Yuan, et al. ADVANCED ENERGY MATERIALS, ( (2016) C.Y. Liu, et al. ADVANCED ENERGY MATERIALS, XXX(2016) Z.Q. Li, et al., Unpublished. 19

27 9. 郭国国平 : 半导导体量子子芯片实实验研究 郭国平中国科学技术术大学摘要 : 作为现代信信息科技技的核心, 半导体芯芯片由于尺尺寸等导致致的量子子效应已越越来越明显, 信息从编码 传送到处处理与测量量等也呈现现出明显显的量子化化趋势 半半导体量子子芯片在在继承现有有半导体产产业技术的的基础上上采用全量量子化的信息编码码和处理模模式, 构建建新型的量量子计算单单元 本次次报告将重重点介绍我们在半半导体量子子芯片基本本逻辑单元元超快单比特量量子逻辑门 [1,2,3] 两比特特量子受控控非门 [4]] 长程量量子比特的的耦合和和量子数据据总线等等方面的实实验研究进进展 [5,6], 同时讨讨论石墨烯烯与类石石墨烯 TMDS 等新半半导体材料料单电子晶体管和量子点的的设计与调调控问题题 References: 1. Ultrafast universal quantum control of a quantum dot charge qubit... Nature Commun. 4, 1401 (2013) 2. Detection and Measurement of Spin Dependent Dynamics in Random... Phys. Rev. Letter 111, (2013) 3. Tunable hybrid qubit in a GaAs double quantum dot. Phys. Rev. Letter 116, (2016) 4. Conditional rotation of two strongly coupled semiconduc ctor charge qubits Nature Commun. 6, 7681 (2015) 5. Charge number dependence of thee dephasing rates of a graphene g double... Phys. Rev. Letter 115, (2015) 6. Coupling two distant double quantum dots with a microwave resonator NanoLetter 16, 5456 (2016) 20

28 10. 何 林 : Emergent Phenomena in Graphene Lin He( 何林 ) Center for Advanced Quantum Studies,, Departmentt of Physics, Beijing Normal University, Beijing, , People s Republic of China C helin@bnu.edu.cn Abstract: In this talk, I will introduce several emergent states of graphene, including localized magnetic moments [1], non-abelian-gauge-field-induced-localization [6,7], induced by atomic defects and stackingg orders. Our resultss demonstrate that STM is a powerful technique to direct image and [2-5], and topological edge states characterize these novel electronic states in graphene. References: [1] Y. Zhang, S.-Y. Li, H. Huang, W. T. Li, J. B. Qiao, W.-X. Wang, L.-J. Yin, W. H. Duan, and L. He*, Direct experimental evidence of π magnetism of a single atomic vacancy in graphene. Phys. Rev. Lett. Vol: 117, PP (2016). [2] W. Yan, M. Liu, R.-F. Dou, L. Meng, L. Feng, Z.-D. Chu, Y. F. Zhang, Z. F. Liu, J.-C. Nie, and L. He*, Angle Dependent Van Hove SingularitiesS s in a Slightly Twisted Graphene Bilayer. Phys. Rev. Lett. Vo ol: 109, PP (2012). [3] W. Y. He, Z.-D. Chu, and L. He*,, Chiral tunneling in a twisted graphene bilayer. Phys. Rev. Lett. Vol: 111,, PP (2013). [4] L.-J. Yin, J. B. Qiao, W. J. Zuo, W. T. Li, and L. He*, Experiment ntal evidencee for non-abelian gauge potentials in twisted graphene bilayers. Phys. Rev. B Vol: 92, PP (Rapid Communications) (2015). [5] L.-J. Yin, J. B. Qiao, W.-X. Wang, W. J. Zuo, W. Yan, R. R Xu, R.-F. Dou, J.-C. Nie, and L. He*, Landau Quantization and Fermi Velocity RenormalizatR ation in Twisted Graphene Bilayers. Phys. Rev. B Vol: 92, PP ( (Rapid Communications) (2015). [6] L.-J. Yin, H. Jiang, J. B. Qiao, and L. He*,, Direct imaging of topological edge states at a bilayer graphene domain wall. Nature Commun. 7, (2016). [7] S.-Y. Li, H. Jiang, J.-J. Zhou, H. W. Liu, F. Zhang, and a L. He* *, Corrugation induced stacking solitons with topologically confined states in gapped bilayer graphene. arxiv:

29 11. 何 亮 : The Quasi-2D Quantum Oscillations of Topological Insulator ZrTe5 Liang He( 何亮 ) 1, Wangg Wei 1, Xiaoqian Zhangg 1, Yongbing Xu 1 1 York-Nanjing Joint J Centerr (YNJC) for Spintronics and Nanoo Engineering, School of Electronics Science and Engineering, Nanjing University, Nanjing, , China Abstract: The layered material ZrTe5 who has large thermopower has attracted many attentions after being predicted as a topological insulator with 0.4 ev bulk direct band gap in Here we report the quantum oscillations o in ZrTe5 bulk crystals, with mobility larger than cm2/vs. The observed o Fermi surface is shown to be two-dimensional, with a Berry phase This suggests that ZrTe5 is a topologically non-trivial material. More importantly, thee transport properties are dominated by a collective behavior of individual ZrTe5 single layer, evidenced by the quantized Hall resistance. 22

30 12. 贾金锋 : Observation of Majorana fermions inn the vortex Jinfeng Jia( 贾金金锋 ) 1 Key Laboratory of Artificial Structures and Quantumm Control (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai , China 2 Collaborative Innovation Center of Advancedd Microstructures, Nanjing , China * address: Abstract: :Majorana fermion f (MF) whose antiparticle is i itself hass been predicted in condensed matter systems. MFs can be used in fault-tolerant quantum computation relying on their non-abelian braiding statistics, therefore,, lots of efforts have been made to find them. Signatures of the MFs have been reported as zero energy modes in various systems. As predicted, MF in the vortex of topological superconductor appears as a zero energy mode withh a cone like spatial distribution. d. Also, MF can induce spin selective Andreev reflection (SSAR), a novell magnetic property which can be used to detect the MFs. Here, all the three featuress are observed for the MFs inside vortices in Bi2Te3/NbSe2 hetero-structure [1-4], in which topological superconductivity was previouslyy established [2,3]. Especially, by using spin-polarized scanning tunneling microscopy/spectroscopyy (STM/STS), we observed the spin dependent tunneling effect, which is a direct evidence for the SSAR from f MFs, and fully supported by theoretical analyses [4]. Moree importantly, all evidences are self-consistent. Our work provides definitivee evidences of MFs andd will stimulate the MFs research on their novel physical properties, hence a stepp towards their t statistics and application in quantum computing. References: [1] M. X. Wang, et al., Science 336, (2012). [2] J. P. Xu, et al., Phys. Rev. Lett. 112, (2014). [3] J. P. Xu, et al., Phys. Rev. Lett. 114, (2015). [4] H. H Sun, et al., Phys. Rev. Lett. 116, (2016). 23

31 13. 江 颖 : Exotic quantum states of protons p probed by STM in water Yingg Jiang( 江颖 ) International Center for Quantum Materials, School of Physics, Peking University, Beijing , P. R. China. Abstract: :Quantum behaviors of protons in terms off tunneling and zero-point motion have significant effects onn the macroscopic properties, p structure, and dynamics of H-bonded materials even at room temperature or higher. In spite of tremendous theoretical and experimental efforts, accurate and quantitative description of the quantum motion off protons is still challenging. The main difficulty lies in that the nuclear quantum effects (NQEs) are extremely susceptible too the structural inhomogeneity and locall environments, especially whenn interfacial systems are concerned. Using a cryogenic scanning tunneling microscope (STM),, we are able to achieve submolecular-resolution imaging [1,2] and single-bond vibrational spectroscopy [3] of water molecules on a NaCl( (001) surface via controlling tip-water coupling, which allows uss to access the quantum degree of freedom of protons both in real and energy space. In this talk, I will discuss how those techniques are used to directly visualize the concerted quantum tunneling of protons withinn the H-bonded network [4] and quantify the t impact of nuclear quantum fluctuation onn the strength of H bonds [3]. Our work opens up the new possibility of exploring the exotic quantum states of light nuclei with STM besides electrons, as welll as the quantum coupling between the electrons and nuclei. References: [1] J. Guo, X. Z. Meng, J. Chen, J. B. Peng, J. M. Sheng, X. X Z. Li, L. M. Xu, J. R. Shi, E. G. Wang *, Y. Jiang *, Nature Materials 13, 184 (2014). [2] J. Chen, J. Guo, X. Z. Meng, J. B.. Peng, J. M. Sheng, L. M. Xu, Y. Jiang *, X. Z. Li *, E. G. Wang, Nature Communications 5, 4056 (2014). [3] J. Guo, J.-T. Lü, J. Chen, J. Peng, X. Meng, Z. Wang, Z. Lin, X.-Z. Li *, E.-G. Wang *, Y. Jiang *, Science 352, 321 (2016). [4] X. Meng, J. Guo, J. Peng, J. Chen, Z. Wang, J. R. Shi, X. X Z. Li, E. G. Wang *, Y. Jiang *, Nature Physicss 11, 235 (2015). 24

32 14. 金贤敏 : Writing Photonic Lattice Chip and Quantum Simulation Jun GAO 1, Hao TANG 1, Xiaofeng LIN 1, Zhen FENG 1, Xianmin JIN( 金贤敏 ) 1 Departmentt of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai , China Abstract:Photon can be generated, manipulated and detected comparatively easier than other quantum particles, and can be transferred in a long distance without coupling into environment. Photon therefore is a promising candidate for realising quantum information processing, including quantum enhanced e communication, computation, simulation and metrology. However, a few limitations including phase stability, mode matching and loss that were thought to be only technical problems have become fundamentall bottlenecks preventing quantum technologyy from realising in large scale and practicall applications. Integrated photonics is i an elegant way to solve the aforementioned problems. In this talk, I will introduce the progress of building femtosecond laserr writing 2..0 in Shanghai Jiao Tong University. We targeted at the key demands on devices in order to develop quantum communicationn and quantum computing. We have thoroughly studied the physical mechanism of waveguide writingg in loss, precision and three-dimensional topological structures. With our laser-written integrated chip, it is feasible to manipulate quantum states in a high phase stability s as well as highly complex interferometer, i.e. two-dimensional physics system, where little experimental demonstration has been achieved. I will present the resultt of non-classical correlation of two identical photons in a fullyy coupled two-dimensional photonic lattice [1]. I will also present new results of quantum walk both in a large-scale genuine two-dimensional structure [2], a graphene-like photonic lattice [3] and first experimental quantum percolation [4]. We are now n developing fullly 3D fabrication capacity to reach the fascinating goal of simulating two-dimensional physics system and large-scale quantum information processing. References: [1] Gao, J. et al. Non-classical photon correlation in a two-dimensional photonic lattice. Opt. Express 24, (2016) [2] Lin, X.F. et al. Single walker quantum walk in a large-scale genuine two-dimensional structure. In preparation [3] Tang, H. et al. Experimental quantum walk in a graphene-like photonic lattice. In preparation [4] Feng, Z. et al. Experimental quantum percolation. Inn preparation ) 1 25

33 15. 李永庆 : Nanoscalee spin correlations and colossal magnetor resistance in HgCr 2 Se 4 Yongqing Li( 李永庆 ) Institute of physics, Chinese Academy of Sciences, Beijing , China Abstract: :HgCr 2 Se 4 has been known as a magnetic semiconductor for five decades. It was however predictedd to be a candidate for ferromagnetic Weyl semimetals in We have carried out a set of magnetizationn and transport measurements of n-type HgCr2Se44 single crystals to probe p the nature of their t electronic structure. For the samples with carrierr densities on o the orderr of 1018 cm-3, our magnetization and Andreev reflection spectroscopy measurements suggest a half-metallic ground state. Near the Curie temperature, pronounced critical behaviors have been observed in transport andd magnetic properties. This can be attributed to strong spin fluctuations near the critical point and strong exchange coupling between low density conduction electrons andd a 3D Heisenberg-typee lattice of Cr3+ spins. The colossal magnetoresistance observed in a wide range of temperatures in the paramagnetic phase will be discussed in a context of magnetic polarons, nanoscale spin correlations, and the strong coupling between the conduction electrons and the lattice spins. References: [1] T. Guan, C. J. Lin, C. L. Yang, Y. G. Shi, C. Ren, Y. Q. Li, L H. M. Weng, X. Dai, Z. Fang, S. S. Yan, and P. Xiong, Evidence for half-metallicityy in n-type HgCr 2 Se 4. Phys. Rev. Lett. 115, (2015). [2] C. J. Lin, C. J. Yi, L. Zhang, Y. G. Shi, G. M. Zhang, J. Müller, andd Y. Q. Li, Spin correlations and colossal magnetores sistance in HgCr 2 Se 4. arxiv:1610. a

34 16. 廖志敏 : 低维狄狄拉克材材料的电子子输运性性质 2 1,2* 1 1 1,2,3 廖志敏李彩彩珍王礼礼先俞大大鹏 1 北京大学物理学学院, 北京, 邮编 ; 量子物质质科学协同创创新中心, 北京, 邮编 南方科科技大学物理系, 深圳, 邮编 * liaozm@pku.edu.cn 摘要 : 狄拉克克电子材料中中的载流子有有效质量为零, 能量和动动量之间为线线性色散关系, 这种独独特的狄拉克克锥形电子能能带结构导致许许多新奇的量量子输运性质质 本报告我我将汇报我们关于低维维狄拉克电子子材料 ( 包括石墨烯 拓扑扑绝缘体 Bi2Se3 纳米结构构 狄拉克半半金属 Cd3As2纳米结构 ) 的制备和和量子输运性质方面的工作 :(1) 石墨墨烯垂直结构构的构筑, 以以及在电流垂直于石墨墨烯平面的情情况下, 温度度 磁场 门门电压对载流流子输运的调制作用 ;(2) 在高迁移率的 Bi2Se3 纳米结构中中观测到来源源于 Bi2Se3 纳米带侧面表表面态的 Shubnikov-de Haas (SdH) 振荡, 通过过圆偏振光选选择性激发拓拓扑绝缘体的表表面态, 增强强了体系的光光热电效应 ;(3) 在狄拉拉克半金属 Cd3As2 纳米米线中观测到负磁电阻效应应和 A-B 效应, 给出了外外尔费米子手手性反常效应应以及表面面态输运的实实验依据 参考考文献 : [1] Li-Xian Wang, Cai-Zhen Li, Da-Peng Yu, Zhi-Min Liao*, Aharonov Bo hm oscillationss in Dirac semimetal Cd 3 As 2 nanowires, Nature Communicationss 7, (2016). [2] Cai-Zhen Li, Li-Xian Wang, Haiwen Liu, Jian Wang, Zhi-Min Liao*, Da-Peng Yu, Giant negative magnetoresistance induced by the chiral anomaly in individual Cd 3 As 2 nanowires, Naturee Communications 6, (2015). [3] Jing-Jing Chen, Jie Meng, Yang-Bo Zhou, Han-Chun Wu, Ya-Qing Bie, Zhi-Min Liao*, Da-Peng Yu*, Layer-by-layerr assembly of vertically conducting graphene devices, Nature Communications 4, 1921 (2013). [4] Zhenzhao Jia, Caizhen Li, Xinqi Li, Junren Shi, Zhimin Liao*, Dapeng Yu, Xiaosong Wu*, Thermoelectric signature of the chiral anomalyy in Cd3As2, Nature Communications 7, (2016). [5] Yuan Yan, Zhi-Min Liao*, Xiaoxing Ke, Gustaaf Van Tendeloo, Qinsheng Wang, Dong Sun, Weii Yao, Shuyun Zhou, Liang Zhang, Han-Chun Wu, Dapeng Yu*, Topological Surface State Enhanced Photothermoelectric Effect in Bi2Se3 Nanoribbons, Nano Letters 14, (2014). [6] Zhi-Min Liao*, Han-Chun Wu*, Shishir Kumar, et al, Large Magnetoresistance in Few Layer Graphene Stacks with Current Perpendicular to Plane Geometry, Advanced Materials 24, 1862 (2012). 27

35 17. 刘 畅 : ARPES investigation of selected topological materials Chang Liu( 刘畅 ) Department of Physics, Southern University of Science and Technology, Shenzhen , China Abstract: The discovery of topologically non-trivial states of matter opens up a new realm of knowledge for fundamental condensed matter physics. Opposed to conventional materials, the so-called topological insulators (TIs) maintain an insulating bulk electronic structure, while exhibiting topologically-protected metallic surface states governed by the Dirac equation. The newly-discovered topological semimetals possess such linear dispersive pattern in all three dimensions, yielding pairs of Fermii dots and exotic Fermi arc surface states between the dots in a pair. In this talk, I will give an overview of our works in this field, including the discovery of the Dirac semimetallic state and the finding of 3D HgTe surface as a tunable topological insulator. References: [1] Chang Liu et al., Tunable spin helical Dirac quasiparticles onn the surface of three-dimensional HgTe. Phys. Rev. B 92, (2015) [2] Su-Yang Xu*, Chang Liu* ett al., Observation of Fermi arc surface states in a topological metal. Science 347, 294 (2015) 28

36 18. 刘开辉 : 原位纳米光谱学学技术的的发展和应应用 刘开辉北京大学摘要 : 当材材料的大小小由宏观减小小到低维尺尺度 ( 约 1-10 nm) 后, 会出现很很多新的的物理现象 : 如量子受受限 增强的的多体相互互作用 强的的范德华耦耦合 由于低低维材料料单元中只有为数不多多的原子, 其物理性质质强烈依赖于它的结构构 为了研究究其中新新颖的物理理规律, 我们们需要一种能能直接把同同一个低维材材料结构和和性质直接对对应起来来的技术 在在本报告中中我将介绍我我们最近发发展出的原位位透射电镜镜 纳米光谱谱学 化学学气相沉积积生长结合技技术, 该技术术具有测量量同一个低维维材料结构构单元原子结结构和物物理性质的功能 我们们利用该技术术研究了一一维碳纳米管 二维石石墨烯和二硫硫化钼体体系中一些些低维物理和和材料生长长机理问题 报告人简介 : 刘开辉博士, 北京京大学物理理学院研究员员 博士生生导师 中组组部青年年千人 基基金委 优青 本科毕毕业于北京京师范大学物物理学系 (2004); 博士毕业业于中科院物物理所 (2009); 在美国加州大大学伯克利利分校物理系系从事博博士后研究究工作 ;2014 年回北京京大学工作 主要研究方方向是 : 低维维材料结构构与物理 主主要研究手手段是 : 发展展单个低维材材料单元元水平的原位透射电镜镜 纳米光谱谱学 化学学气相沉积结结合技术, 以研究单个个低维材材料的生长长 结构和性性质的直接对对应关系, 从而揭露低低维凝聚态态物理中的新新颖规律律和材料生生长机理 目目前刘博士把把该技术成成功应用到一维碳纳米米管 二维石石墨烯等等体系, 取得了一些研研究成果 发表 SCI 论文 40 余篇, 其中包包括第一作者者和 通讯作者的 Nature Nanotechnology ( 3 篇 ), Nature N Physics, Nature Communications (3 篇 ), PNAS, JACS (2 篇 ), Advanced Materials,, Nano Letters, ACS Nano, PRB, APL 29

37 19. 刘雄军 : Chiral Majorana modes protectedp d by an emergent 4D topological invariant t 刘雄军 北京大学 Abstract: :The search for topological superconductors and a non-abelian Majorana modes ranks among the most fascinating topics in condensed matter physics. There now exist several fundamental superconducting phases which host symmetry protected or chiral Majorana modes. The latter, namely the chiral Majorana modess are protected by Chern numbers which are topological invariants in even dimensions. Here we propose to observe a new type of chiral Majorana modes by realizing Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state in a Weyl semimetal which breaks time-reversal symmetry. Without symmetry protection, the 3D gapped d FFLO phase is topologically trivial. However, we find that a vortex line generated in such phase can host chiral Majorana modes, which are shown to be protected by an emergentt 4D topological invariant, namely the second Chern number of a synthetic 4D system generalized from the current FFLO phase. We further showw that these chiral modes in the vortex rings obey non-abelian a new avenue inn the study of new type Majorana modes and statistics like the vorticess in a p+ip superconductor. This work opens non-abelian statistics of loop l braiding which can be applied to topological quantum computation. 30

38 20. 刘玉玺 : 基于超导导磁通量量子比特电电路的新新物理 刘玉玺清华大学学微电子学学研究所微电子子和纳电子子学系清华大大学信息科学学与技术国国家实验室 ( 筹 ) 摘要 : 经过过近 20 年的的发展, 基于于量子计算算的超导量子子相干电路路 ( 也称超导导人工原原子 ) 取得了了巨大的发发展 超导量量子比特相相干时间从最最初的纳秒秒级大幅度地地提升到到百微秒 达达到了量子子计算纠错的阈值条件件并具有了容错功能 电路扩展到到包括 10 多个同种种量子比特特单元的规模, 逻辑相相干操控达到到上千次 新设计的原原型器件件和相关的新物理现象象接连涌现现 本报告将将基于可控超超导磁通量量子比特电路, 阐述其与与天然原子子不同的新的的跃迁选选择定则, 以及由此导导致的新物理理和在量子子计算中的应应用 主要要讲解磁通量量子比特特与微波电电场的横向与与纵向耦合合的机制, 纵场引起的电磁透明, 纵场控制的的量子比比特和横向量子电场耦耦合的开关关 三能级超超导量子电路路中量子态态的绝热转变变和关联联激光器等等理论, 以及及近来与这这些理论相关关的实验研研究 参考考文献 [1] Yu-xi Liu, J. Q. You, L. F. Wei, C. P. Sun, and F. Nori, Phys. Rev. Lett. 95, (2005) [2] Yu-xi Liu, C. X. Yang, H. C. Sun and X. B. Wang, New J. Phys.. 16, (2014) [3] Z. H. Peng, Yu-xi Liu, J. T. Peltonen, T. Yamamoto, J. S. Tsai, and O. Astafiev, Phys. Rev. Lett. 115, (2015) [4] H. K. Xu, C. Song, W. Y. Liu, G. M. Xue, F. F. Su, H. Deng, Ye Y Tian, D. N. Zheng, Siyuan Han, Y. P. Zhong, H. Wang, Yu-xi Liu, and S. P. Zhao, Nat. Commun. 7, (2016). [5] Yulin Wu, Li-Ping Yang, Yarui Zheng, Hui Deng, Zhiguang Yan, Yanjun Zhao, Keqiang Huang, William J. Munro, K. Nemoto, Dong-Ning Zheng, C. P. Sun, Yu-xi Liu, Xiaobo Zhu, and Li Lu,A An efficient and compact quantum switch for quantum circuits,a arxiv:

39 21. 龙桂鲁 : Quantum Secure Direct Communication: Principles and Current Status Gui-Luu Long( 龙桂鲁 ) State Key Laboratory of Low-dimensi ional Quantum Physics and Department of Physics, Tsinghua University, Beijing , China The Innovative Center of Quantum Matter, Beijing , China Tsinghua National Laboratory of Information Science and Technology, Beijing , China gllong@tsinghua. edu.cn Abstract: Quantum communicationn holds promise for absolutely security in secret message transmission. Quantum secure direct communicati on (QSDC), quantum key distribution and quantum secret sharingg are the three major directions d of secure quantum communication. In QSDC secret s messages are sent directly over a quantum channel with security [1]. QSDC offers higher security and instantaneousnesss in communication [2]. It is also a powerful basic quantum communication primitive for constructing many other quantum communication tasks such as quantum bidding, quantum signature and quantum dialogue and so on. Since the first QSDC protocol proposed in 2000 [1], it has become one off the extensive research focuses in i recent years. In this talk, I will introduce the basic ideas of QSDC, and major QSDC protocols suchh as the efficient-protocol[1], the two-stewill review the experimental progress. In particular, the quantum DL04 protocol[4] equippedd with frequency coding has protocol[3], the DL04 protocol[4], the high-dimensional protocol [5]. I also recently been successfully demonstrated experimentally[6]. An experimental demonstration of entanglement-based QSDC has been realized recently with the use of the state-of-the-art quantum memory [7]. A brief perspective will be also given. It iss likely to bee a major form of quantum secure communication in futuree all-quantum communications. References: [1] G L Long and X S Liu, Phys. Rev. A 65, (2002) [2] Z. C. Zhu, A. Q. Hu, A. M. Fu. Int. J. Theo. Phys., 2014, 53(5): [3] Fu-Guo Deng, Gui Lu Long, Xiao-Shu Liu, Phys. Rev. A68, (2003) [4] Fu-Guo Deng and Gui Lu Long, Phys.Rev. A 69, (2004) [5]Cuan Wang et al, Phys. Rev. A 71, ( 2005) [6] Jianyong Hu et al, Light: Science & Applications (2016) 5, e16144 [7] Zhang W, Ding D S, Sheng Y B, Zhou L, Shi B S and Guo G C preprint arxiv:

40 22. 卢海舟 : Anomalous Phase Shift of Quantum Oscillations in i 3D Topological Semimetals Chunming WANG 1,2, Hai-Zhou LU( 卢海舟 ) 1, Shun-Qing S SHEN 3 Department of Physics, Southern University of Sciencee and Technology, Shenzhenn , China 1 D 2 S School of Physics and Electrical Engineering, Anyang Normal University, Anyangg , China 3 Department of Physics, The Universityy of Hong Kong, Pokfulamm Road, Hong Kong, China Abstract:Berry phase physics is closely related to a number of topological states of matter. Recently discovered topological semimetals are believed b to host a nontrivial Berry phase to induce a phase shift of in the quantum oscillation (+ + for hole and - for electron carriers).we theoretically study the Shubnikov de Haass oscillation of Weyl and Dirac semimetals, taking into account theirr topological nature and inter-landau band scattering. For a Weyl semimetal with w brokenn time-reversal symmetry, the phase shift is found to change nonmonotonically and goo beyond known values of and, as a function f of the Fermi energy. For F a Diracc semimetal or paramagnetic Weyl semimetal, time-reversal symmetry leads to a discrete phase shift of or. Different from the previous works, we find that t the topological band inversion can lead to beating patternss in the absence of Zeeman splitting. We also find the resistivity peaks should be assigned integers in the Landau index plot. Our findings may account forr recent experiments in Cd2As3 and shouldd be helpful for exploring the Berry phase in various 3D systems. References: [1]. C. M. Wang, Hai-Zhou Lu *, and Shun-Qing Shen, Physical Revieww Letters 117, (2016). 33