Biograph:  Dr. Bao-Sen Shi is a professor of physics in University of Science and Technology of China (USTC). He received his PhD from USTC in 1998. After that, he joined the Laboratory of Nonlinear Optics as a lecturer, and the Key Laboratory of Quantum Information of Chinese Academy Sciences as an associate professor in 2001, a full professor in 2008. Between 2001 and 2004, he worked at the NEC Tsukuba Laboratories of Japan as a JST researcher. In 2015, he got the support from the National Natural Science Funds for Distinguished Young Scholars of China. During the past years, his group has been focusing on the experimental realization of quantum memories, and has achieved a series of important progresses along this research direction. Besides, his group has also achieved significant progresses in constructing the quantum interface through which different quantum systems can be efficiently connected with each other. He is the author or co-author of over 90 peer-reviewed SCI papers in Nat. Photon., Nat. Commun., Light: Sci. & Appl., Phys. Rev. Lett., Optica, Phys. Rev. Appl., Appl. Phys. Lett., Opt. Lett., Opt. Express, etc. with more than 2000 citations from ISI web of science. His current interests include quantum information, quantum optics, nonlinear optics and atomic optics.

Title:Quantum Information Processing with Orbital Angular Momentum States

Abstract: Light carrying orbital angular momentum (OAM) has many exciting applications in the studies of fundamental quantum physics, optical manipulation and trapping of particles, astrophysics, high-precision optical measurements and optical communication. In quantum information field, a photon encoded with information in its OAM degrees of freedom enables networks to carry significantly more information and increase their capacity greatly due to the inherent infinite degrees of freedom for OAM. In this talk, I will show a series of important progresses achieved along this research direction in our group, including the storages of OAM qubit and qutrit, of OAM entanglement, also the quantum interface based on nonlinear frequency conversions achieved in our group recently. These results will pave the way for high-dimensional quantum information networks, and have potential applications in many other fields, such as biology, astrophysics, night-vision technology, and chemical sensing.