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Title: “Ripples” on a relativistically expanding fluid

Recent studies have shown that fluctuations of various types play important roles in the evolution of the fireball created in relativistic heavy ion collisions and bear many phenomenological consequences for experimental observables. In addition, the bulk dynamics of the fireball is well described by relativistic hydrodynamic expansion and the fluctuations on top of such expanding background can be studied within the linearized hydrodynamic framework. In this paper we present complete and analytic sound wave solutions on top of both Bjorken flow and Hubble flow backgrounds.
Authors:
 [1] ;  [2] ;  [1]
  1. Tsinghua Univ. and Collaborative Innovation Center of Quantum Matter, Beijing (China)
  2. Indiana Univ., Bloomington, IN (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
Publication Date:
OSTI Identifier:
1183271
Report Number(s):
BNL--107704-2015-JA
Journal ID: ISSN 0556-2813; PRVCAN; R&D Project: PO-3; TRN: US1600819
Grant/Contract Number:
SC00112704
Type:
Accepted Manuscript
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 90; Journal Issue: 6; Journal ID: ISSN 0556-2813
Publisher:
American Physical Society (APS)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS riken bnl research center