学　术

　　由基础与前沿研究院量子信息研究中心主办的“信息与量子学术沙龙”第4期邀请到中国科学技术大学程则迪博士来校作学术交流。具体安排如下，欢迎师生们参加。

　　主　题：简并光学谐振腔的实验研究

　　时　间：2018年10月30日（周二）10:30-11:30

　　地　点：沙河校区通信楼725会议室

　　主讲人：中国科学技术大学　程则迪 博士

　　主讲人简介：

　　程则迪，电子科技大学光电科学与工程学院（原光电信息学院）2010级学生，2014年考入中国科学技术大学中科院量子信息重点实验室，硕博连读，一直从事量子模拟方面的研究工作，已实验实现46维简并光学谐振腔的搭建，擅长涡旋光以及光学谐振腔的实验研究工作。

　　报告摘要：

　　Decades ago, before optical orbital angular momentum (OAM) was related to Laguerre-Gaussian modes, J.A. Arnaud studied the degenerate optical cavities in theory, which are usable in active imaging, spatial scanning of lasers. However, the study in experiment is limited by the critical requirements in the alignment of a degenerate cavity in a long period. Then, in 1992, L. Allen et al found that laser lights with a Laguerre-Gaussian amplitude distribution have well-defined OAMs. Since then OAMs have been treated as a new resource besides polarizations and frequencies in optics, and attracted great attentions from researchers. Recently, a proposal on quantum simulation was proposed, in which OAMs were treated as lattice sites to simulate two-dimensional topological physics and degenerate cavities supporting many Laguerre-Gaussian modes are needed. My work is to explore the possibility to carry it out in experiment.

　　　　　　　　　　　　　　　　　　　　　　　　基础与前沿研究院

　　　　　　　　　　　　　　　　　　　　　　　　 2018年10月29日