ca88娱乐ca88客户端机构设置科研人才队伍合作交流研究生教育博士后图书馆创新文化党群园地院重点实验室彭桓武中心ca88亚洲城官网
  学术活动
  您现在的位置:首页 > 学术活动 > 专题学术报告/Seminar
(Seminar) Vacuum structure and origin of color confinement in QCD
2019-11-28  【 】【打印】【关闭

CAS Key Laboratory of Theoretical Physics

Institute of Theoretical Physics

Chinese Academy of Sciences

 Seminar

Title

题目

Vacuum structure and origin of color confinement in QCD

Speaker

报告人

Prof. Dmitriy G. Pak

Affiliation

所在单位

Uzbekistan National University, PIFI fellowship(中科院国际人才计划)

Date

日期

3:30 pm, Nov. 28 (Thu)

Venue

地点

ITP South Building 6620

Abstract

摘要

A long-standing problem of explicit microscopic description of a stable vacuum in a pure SU(3)   quantum chromodynamics (QCD) is resolved on a basis of stationary solutions possessing  local quantum stability against vacuum gluon fluctuations. A space of such solutions is factorized into two gauge and Lorentz invariant subspaces corresponding to non-Abelian color magnetic and electric  type fields respectively. Each subspace contains solutions which represent fixed points under the action of the Weyl color group. Such a symmetry allows to define classical colorless gauge potentials and a space of color singlet one-particle quantum states. We show that the the origin of color confinement phenomenon or spontaneous symmetry breaking is encoded in the structure of the gauge group SU(N). The Weyl symmetric solutions manifest an Abelian dominance phenomenon in the vacuum structure and  provides a consistent classification of physical states, i.e., pure glueballs. As an example, we construct a spectrum of lightest scalar glueballs. Implications in quantum gravity are discussed.

Contact Person

所内联系人

Yu-Feng Zhou
IE6.0浏览器,1024X768分辨率 版权所有 © 中国科学院ca88娱乐研究所
地址:北京市海淀区中关村东路55号 邮政编码:100190
京ICP备05002865号】 京公网安备1101080094号