Adiabatic hydrodynamization in rapidly-expanding quark-gluon plasma
文献类型：期刊论文
| 作者 | Brewer, Jasmine2; Yan, Li3,4; Yin, Yi1,2,5 |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2021-05-10 |
| 卷号 | 816页码:6 |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2021.136189 |
| 通讯作者 | Brewer, Jasmine(jtbrewer@mit.edu) |
| 英文摘要 | We propose a new scenario characterizing the transition of the quark-gluon plasma (QGP) produced in heavy-ion collisions from a highly non-equilibrium state at early times toward a fluid described by hydrodynamics at late times. We develop an analogy to the evolution of a quantum mechanical system that is governed by the instantaneous ground states. In the simplest case, these slow modes are "pre-hydrodynamic" in the sense that they are initially distinct from, but evolve continuously into, hydrodynamic modes. For a class of collision integrals, the pre-hydrodynamic mode represents the angular distribution (in momentum space) of those gluons that carry most of the energy. We illustrate this scenario using a kinetic description of weakly-coupled Bjorken expanding plasma. Rapid longitudinal expansion drives a reduction in the degrees of freedom at early times. In the relaxation time approximation for the collision integral, we show quantitatively that the full kinetic theory evolution is dominated by the pre-hydrodynamic mode. We elaborate on the criterion for the dominance of pre-hydrodynamic slow modes and speculate that adiabatic hydrodynamization may describe the pre-equilibrium behavior of the QGP produced in heavy-ion collisions. (C) 2021 The Author(s). Published by Elsevier B.V. |
| WOS关键词 | FLOW |
| 资助项目 | Office of Nuclear Physics of the U.S. Department of Energy[DE-SC0011090] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB34000000] ; National Natural Science Foundation of China[11975079] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000647421500045 |
| 出版者 | ELSEVIER |
| 资助机构 | Office of Nuclear Physics of the U.S. Department of Energy ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China |
| 源URL | [http://119.78.100.186/handle/113462/137313]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Brewer, Jasmine |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Quark Matter Res Ctr, Lanzhou 073000, Gansu, Peoples R China 2.MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA 3.Fudan Univ, Key Lab Nucl Phys & Ion Beam Applicat MOE, 220 Handan Rd, Shanghai 200433, Peoples R China 4.Fudan Univ, Inst Modern Phys, 220 Handan Rd, Shanghai 200433, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Brewer, Jasmine,Yan, Li,Yin, Yi. Adiabatic hydrodynamization in rapidly-expanding quark-gluon plasma[J]. PHYSICS LETTERS B,2021,816:6. |
| APA | Brewer, Jasmine,Yan, Li,&Yin, Yi.(2021).Adiabatic hydrodynamization in rapidly-expanding quark-gluon plasma.PHYSICS LETTERS B,816,6. |
| MLA | Brewer, Jasmine,et al."Adiabatic hydrodynamization in rapidly-expanding quark-gluon plasma".PHYSICS LETTERS B 816(2021):6. |
入库方式： OAI收割
来源：近代物理研究所
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