报告题目：Multipartite multimode Gaussian quantum correlation measureand the monogamy relations for continuous-variable system

时间：2022年11月8日下午2:00-4:00

腾讯会议：617-317-269

报告人：侯晋川教授

报告摘要：In this talk, definitions of the unification condition, the hierarchy conditionand three kinds of monogamy relations for multipartite quantumcorrelation measures areproposedand discussed.A computable multipartite multimode Gaussian quantum correlationmeasure is proposed for any k-partitemultimode continuous-variable systems.This measureonly depends on thecovariance matrices of continuous-variable states, is invariant under any permutationof subsystems, has no ancilla problem, is nonincreasing underk-partite local Gaussian channels (particularly, invariant underk-partite locally Gaussian unitary operations), and vanishes onk-partite product statesandvice versafor k-partite Gaussian states.Moreover,this measuresatisfies the unification condition and the hierarchy condition that a multipartite quantum correlation measure should obey.We also show thatthis measureis completely monogamous and tightly monogamous, though it isnot strongly monogamous.

报告人简介：

侯晋川，太原理工大学数学学院教授，博士生导师。多年来从事数学的教学和科研工作，研究方向为算子理论、算子代数和量子信息理论。主持完成科研项目28项，其中国家级11项，省部级17项。正主持承担国家自然基金项目一项。在国内外数学及物理杂志上发表学术论文290余篇（物理杂志发表40余篇），其中SCI收录180余篇；出版专著一部。获中国青年科技奖1项；山西省科技进步一等奖2项；山西省自然科学二等奖2项。曾获山西省优秀回国留学人员奖，国务院特殊津贴，山西省优秀专家，山西省第二届科技功臣，山西省劳模，山西省特级劳模，全国做出突出贡献的回国留学人员，全国优秀教师、全国五一劳动奖章，全国先进工作者。