高能物理、单光子级量子硬件、量子纠缠、核量子效应 | 本周物理讲座
1Probing high-energy physical processes with gamma-ray observations
报告人：王仲翔，云南大学
时间：7月13日（周二）16:00
单位：中国科学技术大学天文学系
参会方式：蔻享直播
会议链接：https://www.koushare.com/lives/room/033264
摘要：
With its unprecedented spatial resolution and sensitivity, Fermi Gamma-ray Space Telescope has revolutionized our view of gamma-ray sky. Not only have the populations of high-energy objects in our Galaxy and the universe been established, but also many interesting phenomena and related physical processes have been revealed. In this talk, I will present two intriguing cases we have recently worked on using Fermi’s gamma-ray observations. In case 1, I will show detection of a narrow line-like feature found in the gamma-ray spectrum of a blazar, for which we provide an interpretation requiring the existence of Axion-like particles (ALPs; candidate dark mater particles). In case 2, I will show a gamma-ray enhancement event found in a young supernova remnant (SNR). The event suggests acceleration of particles upto 10~PeV in young SNRs and likely reveals the more complicated side of young SNRs.
报告人简介：
王仲翔：2004美国麻省理工学院天体物理博士，先后在美国麻省理工学院空间科学中心和加拿大麦吉尔大学物理系从事博士后研究。2009年加入中科院上海天文台，“百人计划”研究员。2020年至今，云南大学物理与天文学院研究员。主要从事高能天体物理相关研究，至今在包括自然、自然通讯等天体物理杂志上发表论文约80篇。
2Quantum hardware for the generation, manipulation and detection of light at the single photon level
报告人：Prof. Val Zwiller，KTH Royal Institute of Technology (Stockholm, Sweden)
时间：7月14日（周三）16:00
单位：北京量子信息科学研究院
参会方式：蔻享直播
会议链接：https://www.koushare.com/lives/room/853714
摘要：
We develop single photon sources based on semiconductor quantum dots to generate single photons as well as entangled photon pairs at telecom wavelengths that ultimately enable the implementation of long distance quantum communication in optical fibers. Operation at telecom wavelengths also allows us to implement experiments at the single photon level with off-the-shelf components such as modulators. Schemes to manipulate light on-chip, allowing for integration, scalability and higher reliability are also carried out with the aim of operating at telecom frequencies as well and to realize components for quantum computation. Last but not least, single photon detectors with high detection efficiency, low noise and high time resolution are required to realize quantum communication experiments. For this purpose, we develop superconducting nanowire single photon detectors. To allow for complex systems, integrated quantum optics circuits where we combine quantum sources and superconducting detectors are under development. Finally, we demonstrate single photon transmission over 32 km of deployed SMF28 fibers, paving the way to secure telecommunication links using quantum technologies.
报告人简介：
Val Zwiller got his PhD in 2001 from Lund University on single photon generation with quantum dots. He worked at the Humboldt University in Berlin, EPFL and ETH in Switzerland before joining TU Delft in 2006 as an assistant professor. He co-founded Single Quantum in 2012, a company supplying high-performance single photon detectors. He has been a professor at the Royal Institute of Technology in Stockholm since 2015.
时间：7月13日(周二) 20:30
主办方：中国科学技术大学、美国物理学会
参会方式：蔻享直播
Format of the Workshop: Hybrid
Given the likely still very challenging situations surrounding the COVID-19 pandemic in the coming months, the workshop is planned to have a hybrid format, physically taking place in Hefei, China, but with the option to attend virtually.
Background of the Workshop
The Physical Review Workshops focus on topics that straddle traditional subject boundaries and new ones that are starting to “emerge from the noise”. They are being developed as the expanded versions of the Physics Next Workshops. Since its launching in 2017, all the Physics Next workshops had taken place in scenic Eastern Long Island, not far from the location of the APS editorial offices. The Physical Review Workshops would be held far away from Long Island, but would still be well attended by the relevant Physical Review editors.The present workshop is a follow-up to the first Physical Review Workshop launched in Hefei, China on November 10-13, 2019, with the theme of “New Frontiers of Superconductivity” (see more meeting info at https://icqd.ustc.edu.cn/prworkshop/main.psp), but with the new theme of “Quantum Materials for Modern Magnetism & Spintronics (Q3MS)”. Collectively, the goal of these workshops is to provide a setting to promote open and informal discussions and the exchange of information needed to help assess the promise and challenges of an emerging field. With this in mind, the workshops comprise only a limited number of presentations and leave considerable room for informal conversations, round-table discussions, and social activities.
报告人：李新征，北京大学
时间：7月15日（周四）15:00
单位：合肥微尺度物质科学国家研究中心、国际功能材料量子设计中心、中科院强耦合量子材料物理重点实验室、中国科大物理系、科研部
参会方式：蔻享直播
会议链接：https://www.koushare.com/lives/room/936136
摘要：
时间：7月17日至30日
单位：宁波大学物理科学与技术学院
参会方式：蔻享直播
会议链接：https://www.koushare.com/lives/room/391262
摘要：
受国家自然科学基金理论物理专款的资助（项目编号：11947501），2021年凝聚态理论前沿暑期讲习班将由宁波大学承办，于2021年7月16日至30日在浙江省宁波市宁波大学开班。本次讲习班选取凝聚态理论中备受关注的六个主题方向，面向青年教师、博士后和在读博士研究生，安排两周的高级课程，邀请位于国际研究前沿的知名学者做系列讲座，内容从基础理论一直讲到研究前沿，使学员了解科学前沿、掌握新的理论和研究方法，为从事凝聚态理论前沿领域的相关研究打下坚实的基础，达到推动我国凝聚态理论研究发展目的。
具体讲座内容及时间安排见上方链接。
更多报告信息：中国物理学会期刊网学术讲座列表