基于规范引力对偶与全息性的量子色动力学
批准号:
12005033
项目类别:
青年科学基金项目
资助金额:
24.0 万元
负责人:
李斯文
依托单位:
学科分类:
量子场论与弦论
结题年份:
2023
批准年份:
2020
项目状态:
已结题
项目参与者:
李斯文
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中文摘要
自规范引力对偶给出用引力微扰解析处理强耦合量子场论的方法以来,它便成为国际理论物理研究中的热点。虽然量子色动力学已是现今描述强相互作用的基本理论,但在有限密度与有限温度的条件下,量子色动力学很难做定量计算。尤其对低能标中的强子、核子的描述大多只能依赖传统的唯象模型与数值模拟,但这会引入过多的参数。因此本项目拟利用规范引力对偶,从弦理论这一基本理论层面,构建适用于量子色动力学及强子物理的全息对偶理论,用基本理论理解强子物质的相互作用并克服传统理论的弊端。由于目前弦理论中的多膜系统能较好地重现量子色动力学及强子物理中的基本元素,故本项目拟通过多膜系统及其中最有名的D4/D8模型(Witten-Sakai-Sugimoto模型)构建全息量子色动力学,使之可在有限温度与有限密度的条件下描述物质的相结构、强相互作用中的CP破坏、重味介子与胶球、重离子对撞中的粒子产生,并给出可与实验数据对比的结果。
英文摘要
The gauge/gravity duality has become a popular topic in the international research of theoretical physics since it provides an analytical way to deal with the strong coupling quantum field theory by using the gravity perturbation. Nowadays while the Quantum Chromodynamics (QCD) has been recognized as the fundamental theory to describe the strong interaction, it is quite powerless to do analytical calculations at finite temperature with dense matter. Especially, at low-energy scale, the hadron and nucleon have to be described by the traditional models and numerical simulations phenomenologically, which however includes too many parameters. So, this project focuses on the gauge/gravity duality with the underlying string theory to construct the holography for QCD and hadron physics in order to understand the fundamental interaction in hadronic matter and overcome the defects (too many parameters) in the traditional theories. Currently the multiple-brane system in string theory could reproduce the basic elements of QCD or hadron physics, so this project would construct the holographic QCD model based on the multiple-brane system with the most remarkable model i.e. the D4/D8 model (Witten-Sakai-Sugimoto model). The goal of this project is to describe the full phase diagram of dense matter at finite temperature, the CP violation in strong interaction, the heavy-flavored meson with glueball and the particle creation in heavy-ion collision all by one holographic theory. The result and prediction close to the experimental data are also the key importance in this project.
期刊论文列表
专著列表
科研奖励列表
会议论文列表
专利列表
DOI:10.1007/jhep08(2022)206
发表时间:2022-05
期刊:Journal of High Energy Physics
影响因子:5.4
作者:Si-wen Li;Senlin Luo;Haoyue Li
通讯作者:Si-wen Li;Senlin Luo;Haoyue Li
DOI:The D4/D8 Model and Holographic QCD
发表时间:2023
期刊:Symmetry
影响因子:--
作者:Si-wen Li;Xiao-tong Zhang
通讯作者:Xiao-tong Zhang
DOI:10.1103/physrevd.104.066008
发表时间:2021-06
期刊:Physical Review D
影响因子:5
作者:Si-wen Li;S. Luo;Mu-zhi Tan
通讯作者:Si-wen Li;S. Luo;Mu-zhi Tan
DOI:10.1103/physrevd.106.126027
发表时间:2022-09
期刊:Physical Review D
影响因子:5
作者:Si-wen Li;Hao Li;Senlin Luo
通讯作者:Si-wen Li;Hao Li;Senlin Luo
DOI:10.1140/epjc/s10052-021-09607-6
发表时间:2020-05
期刊:The European Physical Journal C
影响因子:--
作者:Si-wen Li
通讯作者:Si-wen Li
规范引力对偶在强子物理中的应用
- 批准号:--
- 项目类别:专项基金项目
- 资助金额:5万元
- 批准年份:2019
- 负责人:李斯文
- 依托单位:
国内基金
海外基金















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