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学术报告


7月17日邓东灵报告

发布时间:2017-07-13

报告时间:7月17日 周一 上午10:00

报告地实验室一楼会议室

报告人:邓东灵博士(University of Maryland)

报告题目: Machine learning quantum states and entanglement

报告摘要:

    Recently, machine learning has attracted tremendous interest across different communities. In this talk, I will briefly introduce a new neural-network representation of quantum many-body states. I will show that this representation can describe some topological states, either symmetry protected or with intrinsic topological order, in an exact and efficient fashion. I will talk about the entanglement properties, such as entanglement entropy and spectrum, of those quantum states that can be represented efficiently by neural networks. I will also show that neural networks can be used, through reinforcement learning, to solve a challenging problem of calculating the massively entangled ground state for a model Hamiltonian with long-range interactions. R

References: 

[1] D.-L. Deng, X. P. Li, and S. Das Sarma, arXiv: 1609.09060 

 [2] D.-L. Deng, X. P. Li, and S. Das Sarma, Phys. Rev. X, 7, 021021 (2017). 

报告人简介 

    Dong-Ling Deng graduated from Nankai University in 2007 with two Bachelor degrees, one in physics and the other in mathematics. He then studied in the Chern Institute of Mathematics and got a Master degree in theoretical physics. After that, he moved to the University Michigan and obtained his Ph.D. under Prof. Luming Duan. Now, he is a Joint Quantum Institute Postdoctoral Fellow, working with Prof. Sankar Das Sarma at the University of Maryland. Dr. Deng’s main research interests concern quantum information and condensed matter physics.