学术活动
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2024-1209
报告题目:Pulse Shaping Single Photons from a Trapped Ion with Active Feedback and Machine Learning for Hybrid Quantum Systems报 告 人:Prof. Boris Blinov,University of Washington报告时间:2024年12月11日16:00 报告地点:理科楼C302内容摘要:In quantum networks, the indistinguishability of single photons used to establish remote entanglement is crucial. Successful entanglement requires that th...
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2024-1202
报告题目:Magnetism of fermions on triangular lattice报 告 人:何宇驰,根特大学报告时间:2024年12月4日14:00 报告地点:物理楼W316内容摘要:The investigation of twisted bilayer graphene has opened a “twistronics era”, providing unprecedented tunability for solid-state systems and an excellent platform for strongly correlated quantum phases and their transitions. While twisted bilayer graphen...
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2024-1202
报告题目:中子散射对量子自旋液体候选材料的动力学研究报 告 人:马杰,上海交通大学物理与天文学院教授报告时间:2024年12月6日15:00 报告地点:理科楼B315内容摘要:在强关联阻挫体系中,复杂的自旋、电子、晶格和轨道相互作用常常会导致低能态的宏观简并,诱导出一系列新奇的物理特性。当磁矩较小(S=1/2或1)时,这种简并态极易受到热涨落、量子涨落等影响,在极低温、高磁场、强压力等极端条件下被进一步调控,甚至产生...
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2024-1202
报告题目:Laser ARPES Study of High Temperature Superconductors报 告 人:周兴江,中国科学院物理研究所报告时间:2024年12月5日16:00 报告地点:理学院郑裕彤大讲堂内容摘要:The superconductivity mechanism in high temperature superconductors remains a prominent and challenging issue in condensed matter physics. Angle-resolved photoemission spectroscopy (ARPES) plays a key role in probing the elect...
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2024-1202
报告题目:Topology, Entanglement, and Emergent Symmetry in Quantum Critical Spin Chains报 告 人:张龙,Kavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences报告时间:2024年12月4日10:00 报告地点:理科楼C302内容摘要:In this talk, I will introduce our recent works on quantum critical spin chains. In the first part, we focus on the “symmetry-enriched” quantum cri...
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2024-1127
报告题目:Spectral Representation of Cosmological Correlators报 告 人:Denis Werth (Institut d'Astrophysique de Paris, Sorbonne Université)报告时间:2024年11月28日13:30 报告地点:物理楼W105内容摘要:Cosmological correlators are significantly more complex than their flat-space analogues, such as tree-level scattering amplitudes. While these amplitudes have rather simple analytic structure and...
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2024-1125
报告题目:Novel Nanophotonic Devices based on Strong Light-Matter Interaction报 告 人:Hong-Gyu Park, 首尔国立大学教授报告时间:2024年11月26日 11:00报告地点:理科楼C302内容简介:I will talk about two topics: advancing nanolasers based on photonic topological cavities and strain-induced single-photon emitters in atomically thin semiconductors.(1) Advancing nanolasers based on photonic topolog...
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2024-1125
报告题目:Ultrafast magnetism – terra incognita beyond the classical approximations报 告 人:Prof. Alexey Kimel,Radboud University (Nijmegen, The Netherlands)报告时间:2024年11月28日16:00 报告地点:理学院郑裕彤大讲堂内容摘要:While magnetism is essentially the strongest quantum mechanical phenomenon, modern description of magnetization dynamics and magnetization reversal relies on thermodyn...
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2024-1125
报告题目:二维反铁磁拓扑绝缘体中的量子几何特性报 告 人:高安远,上海交通大学李政道研究所报告时间:2024年11月27日15:30 报告地点:物理楼W361内容摘要:在量子世界中,量子几何定义了两个量子态之间的相位和幅值的差值。其中,量子态的相位差由我们熟知的Berry curvature所描述,而量子态的振幅差则由quantum metric所描述。通过对Berry curvature的研究,成功的解释了反常霍尔效应和拓扑量子现象等。那么quantum metri...
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2024-1119
报告题目:Recent developments in black hole perturbation theory报 告 人:Sam Wong 黃崇清 (City University of Hong Kong)报告时间:2024年11月21日13:30 报告地点:物理楼W105内容摘要:In various stages of black hole binary mergers, black hole perturbation theory is crucial for understanding the resulting gravitational waves. Notably, the ringdown phase of the final black hole is effectively chara...