04/04
2023
Seminar
- Title题目 Two-dimensional Turbulence and Conformal Field Theories
- Speaker报告人 年骏 (国科大亚太理论物理中心)
- Date日期 2023年04月04日 14:30
- Venue地点 线下: 南楼6620 线上: https://meeting.tencent.com/dm/CsIArfdM0fGp 腾讯会议：300-994-749
Abstract摘要
Two-dimensional Navier-Stokes turbulence is a fascinating problem. Despite its chaotic nature, its spectrum has very simple scalings (k^(-5/3) and k^(-3)) in a particular range, which strongly suggests an underlying quantum conformal field theory (CFT) description. Polyakov has studied this problem and proposed a non-unitary (21, 2) minimal model as the preliminary CFT candidate. Later, despite many numerical and theoretical attempts, none of the CFT approaches simultaneously reproduced the precise scalings and cascade directions. In a recent work arXiv:2210.06762, my collaborators and I resolve this long-standing problem of finding the correct non-unitary CFT description for the 2d turbulence in the inertial range, which produces the precise scalings, the directions of two cascades and also the fractal dimensions in a unified picture. We also made some new predictions for future numerical simulations and experiments to test. In this talk, I will discuss this work in detail.
报告人简介:
年骏，中国科学院大学国际理论物理中心(亚太地区)副教授。2009年本硕连读毕业于德国海德堡大学，2015年在美国纽约州立大学石溪分校获得博士学位。2015～2020年分别在法国高等科学研究院、美国密歇根大学任博士后研究员，期间先后在欧洲核子中心理论组、中国科学技术大学交叉学科理论研究中心、德国汉诺威大学黎曼几何与物理学中心、美国纽约州立大学石溪分校西蒙斯几何与物理学中心任访问学者。2021年入职中国科学院大学国际理论物理中心(亚太地区)。主要研究量子场论、引力理论、弦论。
邀请人:
李理 研究员
直播链接：
https://www.koushare.com/lives/room/482306
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