应兰州大学核科学与技术学院、稀有同位素前沿科学中心邀请，巴西坎皮纳斯州立大学Giorgio Torrieri教授将于2025年11月21日来校进行学术交流并作报告。

报告题目：Gaussian Generally Covariant Hydrodynamics

报告时间：2025年11月21日（星期五）10：30

报告地点：兰州大学二分部现物楼214室

欢迎广大师生参加！

【报告摘要】

We examine the length scales usually associated with the applicability of hydrodynamics as an effective theory in the light of the observation of hydrodynamic behavior in small systems. We argue that the explanation of such behavior might reside in the requirement of local equivalence between fluctuations and dissipative dynamics. In a way somewhat analogous to the equivalence of gravity and acceleration in general relativity, this leads to a theory which is generally covariant and non-perturbative in fluctuations. We argue that the scale separation in this theory is very different from the Knudsen number, thus explaining how strongly coupled systems with just a few degrees of freedom are characterized by an ensemble of trajectories whose average could be close to that of an ideal fluid. Based on https://arxiv.org/abs/2504.17152

【报告人简介】

Giorgio Torrieri is an associate professor of physics at the state University of Campinas, in Brazil. Born in Russia, he studied in Oxford and got his PhD at the University of Arizona. His research interests range from phenomenology of quark-gluon plasma to theoretical aspects of hydrodynamics and statistical mechanics, including the study of hydrodynamic fluctuations and hydrodynamics with spin.

  核科学与技术学院

稀有同位素前沿科学中心

2025年11月17日