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博士后学术沙龙(第34期)
文:唐小青 来源:党委教师工作部、人力资源部(教师发展中心) 时间:2019-05-08 4633

  为搭建我校博士后之间的学术交流平台,促进学术水平提升,学校博士后管理办公室组织开展博士后学术沙龙活动。本次沙龙由我校博士后Utkarsh Mishra、Victor Montenegro和高阳分享其研究成果,诚挚邀请感兴趣的师生参加。

  一、时 间:2019年5月9日(周四)14:00

  二、地 点:沙河校区通信楼818会议室

  三、主 办:电子科技大学博士后管理办公室

  四、承 办:基础与前沿研究院

  五、活动安排:

  报告一:

  (1)主 题:Quantum sensing

  (2)主讲人: Utkarsh Mishra  基础与前沿研究院博士后 

  (3)交流内容:

  “Quantum sensing” describes the use of a quantum system, quantum properties, or quantum phenomena to perform a measurement of a physical quantity. Historical examples of quantum sensors include magnetometers based on superconducting quantum interference devices and atomic vapors or atomic clocks. More recently, quantum sensing has become a distinct and rapidly growing branch of research within the area of quantum science and technology, with the most common platforms being spin qubits, trapped ions, and flux qubits. The field is expected to provide new opportunities—especially with regard to high sensitivity and precision—in applied physics and other areas of science. This review provides an introduction to the basic principles, methods, and concepts of quantum sensing from the viewpoint of the interested experimentalist.

  Reference:

  C. L. Degen, F. Reinhard, and P. Cappellaro Rev. Mod. Phys. 89, 035002 (2017).

  主讲人简介:

  Dr. Utkarsh Mishra works on non-equilibrium dynamics of many-body systems. He has got his PhD from Harish-Chandra Research Institute in India in 2016. After that he worked as a postdoc at the Asia Pacific Center for Theoretical Physics in Pohang, South Korea. In 2018 he has joined the UESTC as a postdoc to work in the group of Professor Abolfazl Bayat.

  报告二:

  (1)主 题:Quantum-enhanced measurements without entanglement

  (2)主讲人:Victor Montenegro  基础与前沿研究院博士后 

  (3)交流内容:

  Quantum-enhanced measurements exploit quantum mechanical effects for increasing the sensitivity of measurements of certain physical parameters and have great potential for both fundamental science and concrete applications. Most of the research has so far focused on using highly entangled states, which are, however, difficult to produce and to stabilize for a large number of constituents. In the following alternative mechanisms are reviewed, notably the use of more general quantum correlations such as quantum discord, identical particles, or nontrivial Hamiltonians; the estimation of thermodynamical parameters or parameters characterizing nonequilibrium states; and the use of quantum phase transitions. Both theoretically achievable enhancements and enhanced sensitivities not primarily based on entanglement that have already been demonstrated experimentally and indicate some possible future research directions are described.

  Reference:

  D. Braun, G. Adesso, F. Benatti, R. Floreanini, U. Marzolino, M. W. Mitchell, and Stefano Pirandola, Rev. Mod. Phys. 90, 035006 (2018).

  (4)主讲人简介:

  Dr Victor Montenegro works on the field of quantum opto-mechanics and quantum sensing. He has got his PhD from University College Lonodn in 2015 and after one postdoc at PUC in Chile he has joined the UESTC as a postdoc in 2018. 

  报告三:

  (1)主 题:Understanding Actinium(III) Hydration Structure by Insights from Energies and Wave functions

  (2)主讲人:高阳  基础前沿研究院博士后

  (3)交流内容:

  The physicochemical property of actinium is not very well known since all of its isotopes are highly radioactive, and the element occurs naturally only in trace amounts. (The most stable isotope, 227Ac, has a half-life of about 22 years.) Therefore, it is the goal of the project to use computational physics-chemistry to fill in some of these knowledge gaps. Actinium is quite intriguing chemically in that it behaves essentially as a transition metal but has empty 5f orbitals that are in principle available for bonding as well.

  Using the known Ac aquo complex as reference point, we will model complexes with common aqueous ligands (e.g. carbonate, hydroxide) and chelating, multidentate ligands that have been developed for uranium extraction and complexation. The research focuses on thermodynamics and nature of bonding of these complexes using different theoretical methods that incorporate relativistic methods and solvation effects.

  (4)主讲人简介:

  Yang Gao is a post-doc majored in atomic and molecular physics. He obtained bachelor’s degree in physics in Baicheng normal university, then performed PhD research in atomic and molecular physics advised by Prof. Zhigang Wang in Jilin university. His research interests are in the areas of theoretical and computational physics-chemistry, notably electronic structure theory.


                    电子科技大学博士后管理办公室

                        2019年5月8日


编辑:罗莎  / 审核:罗莎  / 发布:陈伟

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