邀请人 (Invited by): 张鹏鸣

时间 (Time): 星期五，2023/04/14-10：00-11：00

地点 (Location): 珠海校区天琴中心2317会议室

摘要 (Abstract): 

Construction of the Hilbert space of one particle quantum states including vacuum is a primary task in any quantum field theory. We construct the space of quantum states in SU(3) quantum Yang-Mills theory underlying quantum chromodynamics (QCD) with one flavor quark. A basic idea of our formalism is that color attributes of the vacuum, gluons and quarks are determined by Weyl group symmetry which is the only non-trivial color symmetry available after fixing the local gauge symmetry. Following this idea we construct a full space of classical Weyl symmetric dynamical solutions which lead to singlet quantum states for gluons and quarks. We demonstrate that a non-degenerate vacuum structure is completely determined by Weyl symmetric Abelian classical solutions describing the microscopic structure of vacuum gluon and quark condensates. It has been shown that single quark and gluon form bound states due to interaction to vacuum quark and gluon condensates providing a mechanism of color and quark confinement.

主讲人简介 (Speaker's CV): 

Pak Dmitriy教授，1981年获得乌兹别克斯坦国立大学物理系硕士学位，1989年获得理论和数学物理系博士学位。2023年1月至今，为乌兹别克斯坦塔什干物理技术学院理论物理实验室资深科学家；1984-2022年，为乌兹别克斯坦国立大学理论物理系资深科学家；作为访问教授，曾先后访问韩国首尔国立大学理论物理中心、中国南开大学陈省身数学研究所、俄罗斯杜布纳JINR，BLTP、中国科学院近代物理研究所、中科院理论物理研究所等。

主要研究方向：QCD；规范场