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“水基本物理问题”公开课|本周物理学术讲座

来自：查字典教育资讯网 2016-10-27

1“水基本物理问题”公开课

报告人与题目：

水与水科学（杨国桢院士）

熟悉而又难以理解的水（曹则贤研究员）

饮水安全与健康（杨敏研究员）

现代“治”水之道：从分子层面做起（胡钧研究员）

生物水的特性和功能（罗毅教授）

水与物质界面特性的工程应用示范（温维佳教授）

时间： 10月21日（周五）16:00

单位：中科院物理研究所

地点：M234报告厅

“水基本物理问题”公开课|本周物理学术讲座1

2低成本高效燃料电池纳米催化剂的设计思考

报告人：胡劲松，中科院化学研究所

时间： 10月18日（周二）14:00

单位：中科院理化所

地点：1号楼402会议室

3完美匹配电磁材料

报告人：叶德信，浙江大学

时间： 10月18日（周二）14:30

单位：中科院物理研究所

地点：M253会议室

In this talk, I will summarize our works on the physical realization of perfectly matched artificial materials. Three kinds of perfectly matched materials are characterized and physically realized, including perfectly matched absorber, perfectly matched invisible material and perfectly matched polarizer.

4Quantum corrections to the classical Newtonian interactions

报告人：余洪伟，湖南师范大学

时间：10月19日（周三）10:00

单位：北京师范大学物理学系

地点：物理楼106

When gravity is quantized, there inevitably exist quantum gravitational vacuum fluctuations which induce quadrupole moments in gravitationally polarizable objects and produce, in close analogy to the Casimir-Polder forces, quantum corrections to the classical Newtonian interactions such as those between polarizable objects, and a polarizable object and a boundary. In this talk, we review our recent calculations of these forces.

5我所熟悉的中国物理学大师的为人和为学

报告人：朱邦芬，清华大学

时间：10月19日（周三）10:30

单位：中国科学院大学

地点：雁栖湖校区教1-101

6自旋玻璃：理论方法及网络科学应用

报告人：周海军，中科院理论物理所

时间：10月19日（周三）16:00

单位：北京师范大学物理学系

地点：物理楼106

自旋玻璃是1975年由 Edwards 和 Anderson 提出来的用于理解无序和阻挫的磁性材料的一个简单模型。经过四十年的研究发展，自旋玻璃研究已然成为统计物理学的一个重要研究方向，并推动了统计物理学在约束满足、组合优化、统计推断、网络科学等方面的交叉学科应用；但国内从事自旋玻璃理论研究的团队很少。在这一报告中，我将介绍自旋玻璃平均场理论的关键物理思想和基于消息传递的分布式计算方案，并介绍这些理论方法在随机 K－满足问题、最小反馈节点集合问题、复杂网络最优攻击问题上的成功应用。

7China and the Future of Fundamental Physics

报告人：Nima Arkani-Hamed，IAS, Princeton

时间： 10月19日（周三）18:30

单位：中国科学院理论物理研究所

地点：新楼6620

Nima Arkani-Hamed is one of the leading theoretical physicist of his generation with broad interests in high-energy physics, string theory and cosmology. He has taken a lead in proposing new physical theories that can be tested at the Large Hadron Collider at CERN. His research has shown how the extreme weakness of gravity might be explained by the existence of extra dimensions of space, and his recent work focuses on a reformulation of the foundations of quantum field theory. He is a professor at the prestigious Institute for Advanced Study in Princeton, and the inaugural director of the Center for Future High Energy Physics in China. He has received numerous awards, including the Fundamental Physics Prize in 2012.

8Integral reduction at multi loop, an algebraic geometry story

报告人：Yang Zhang，ETH, Zurich

时间： 10月20日（周四）10:00

单位：中科院高能物理研究所

地点：Conference Hall 319, Theoretical Physics pision

Multiloop amplitude is very important for the study of LHC physics. Given large number of Feynman diagrams, we need to consider the reduction to a small number of master integrals. Usually this is achieved by IBP relations, however, IBP computation is often very heavy. In this talk, we show the recent progress of IBP reduction, based on generalized unitarity and new mathematical method: computational algebraic geometry.

9拓扑光子晶体

报告人：陆凌，中科院物理研究所

时间： 10月20日（周四）15:00

单位：北京大学

地点：物理大楼中212教室

In his talk, I will show ur experimental realizations and theoretical predictions of 2D and 3D photonic crystals with topologically protected edge and surface sates.Specifically,I will discuss single and multimode one-way aveguides,the observation of Weyl points,and a nonsymmorphic 3D photonic crystal supporting a single Dirac cone surface tate immune to random disorder.This research can be xtended to phonons,plasmons and other bosons.These new degrees of freedom in bosonic band topologies promise wide exciting opportunities in both fundamental physics and technological outcomes.

10A Good Hard Look at Growing Supermassive Black Holes in the Distant Universe

报告人：Niel Brandt，Penn State U

时间： 10月20日（周四）16:00

单位：北京大学科维理天文与天体物理研究所

地点：KIAA-PKU Auditorium

Sensitive cosmic X-ray surveys with the Chandra, XMM-Newton, and NuSTAR observatories have revolutionized our ability to find and study distant active galactic nuclei (AGNs), the main sites of supermassive black hole growth in the Universe. I will describe some of the resulting discoveries about the demographics, physics, and ecology of AGNs. Topics covered will include the utility of deep X-ray plus multiwavelength surveys for investigating distant AGNs; evolution constraints for the typical AGNs of the distant Universe; the cosmic balance of power between supermassive black holes and stars; interactions between AGNs and their hosting galaxies; and the AGN content of newly forming galaxies. I will end by discussing some key outstanding questions and new observations and missions that aim to answer them.

11All-Optical Helicity-Dependent switching in magnetic nano-structures and devices

报告人：S. Mangin，Institut Jean Lamour

时间： 10月21日（周五）09:00

单位：清华大学物理系

地点：理科楼C302报告厅

It is within that context that we are studying the effect of femtosecond laser pulses on magneto-resistive systems with perpendicular magnetic anisotropy, with the aim of identifying the magnetization orientation through an electrical signal. We measure the all-optical switching in Pt/Co/Pt and Tb27Co73 based Hall crosses via the anomalous Hall effect. In fact, a jump in Hall voltage resulting from magnetization reversal is observed by reversing the circular polarization of the femtosecond laser pulses. This new way of probing the all-optical switching enables a statistical quantification of the switching ratio for different laser parameters. We will present results on hall crosses for both ferrimagnetic and ferromagnetic materials.

12Progress on continuous-time dynamic cavity method

报告人：Erik Aurell，Royal Institute of Technology KTH

时间： 10月21日（周五）10:30

单位：中科院理论物理研究所

地点：Room 6420, ITP new building

Computing the marginal probabilities of a Gibbs-Boltzmann probability distribution has many applications in Physics and outside Physics. Efficient approximate methods have been developed over several decades to achieve this task if the graph of interactions has a locally tree-like form, as it has for random graphs. In Physics these methods are called the cavity method or the Bethe-Peierls method; in computer science they are called Belief Propagation and in Information Theory they are a part of iterative decoding.

13锇体系新材料探索和功能材料单晶生长

报告人：石友国，中科院物理研究所

时间： 10月21日（周五）14:30

单位：北京师范大学物理学系

地点：物理楼106

新材料探索方面，以材料为导向，在5d锇化合物体系中发现了系列具有奇异物性的新材料，如Slater相变的钙钛矿NaOsO3、Os-O-O-Os双超交换材料Ca3LiOsO6、具有铁电结构相变的金属氧化物LiOsO3等等，这一系列新材料为研究纯粹的d电子态随轨道变化而演变提供了素材，进一步增强对d电子态的理解。功能材料单晶生长方面，以理论计算和物性测试需求为导向，服务于周围众多特殊物性测试和分析科研小组，实行团队科研；生长了KHgSb、MoP、Cd3As2、Na3Bi、HgCr2Se4、Na2Ti2T2O (T = As, Sb)、WTe2、K2Cr3As3等系列单晶，研究了这些材料的奇异物性。

更多报告信息：中国物理学会期刊网学术讲座列表

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