October 17: “Relativistic fluctuation dynamics” by Xin An

Abstract: Fluctuations are ubiquitous phenomena that emerge across various physical scales. In the context of heavy-ion collisions where the system can be treated hydrodynamically, fluctuations are important for describing the event-by-event collision processes, and become rather crucial for understanding the universal behavior near the QCD critical point. In this talk, different approaches to studying fluctuating hydrodynamics will be briefly reviewed, yet with an emphasis on the recent progress in the covariant description of relativistic fluctuation dynamics for energy, momentum and charge within and beyond the Gaussian regime. This new development also constitutes an integral part of the theoretical framework for interpreting the forthcoming experimental results from the second phase of RHIC Beam Energy Scan program.