期刊
PHYSICAL REVIEW C
卷 102, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.102.054911
关键词
-
资金
- U.S. Department of Energy, Office of Science, Office for Nuclear Physics [DE-SC0004286, DE-SC0011090]
- National Science Foundation (NSF) [ACI-1550223]
- Strategic Priority Research Program of Chinese Academy of Sciences [XDB34000000]
- MIT Center for Theoretical Physics
- Alexander von Humboldt Foundation
- Beam Energy Scan Theory (BEST) Collaboration
The evolution of nonhydrodynamic slow processes near the QCD critical point is explored with the novel HYDRO+ framework, which extends the conventional hydrodynamic description by coupling it to additional explicitly evolving slow modes describing long wavelength fluctuations. Their slow relaxation is controlled by critical behavior of the correlation length and is independent from gradients of matter density and pressure that control the evolution of the hydrodynamic quantities. In this exploratory study, we follow the evolution of the slow modes on top of a simplified QCD matter background, allowing us to clearly distinguish and study, both separately and in combination, the main effects controlling the dynamics of critical slow modes. In particular, we show how the evolution of the slow modes depends on their wave number, the expansion of and advection by the fluid background, and the behavior of the correlation length. Nonequilibrium contributions from the slow modes to bulk matter properties that affect the bulk dynamics (entropy, pressure, temperature, and chemical potential) are discussed and found to be small.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据