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Title: Global flow structure and exact formal transseries of the Gubser flow in kinetic theory

Abstract

In this work we introduce the generic conditions for the existence of a non-equilibrium attractor that is an invariant manifold determined by the long-wavelength modes of the physical system. We investigate the topological properties of the global flow structure of the Gubser flow for the Israel-Stewart theory and a kinetic model for the Boltzmann equation by employing Morse-Smale theory. We present a complete classification of the invariant submanifolds of the flow and determine all the possible flow lines connecting any pair of UV/IR fixed points. The formal transseries solutions to the Gubser dynamical system around the early-time (UV) and late-time (IR) fixed points are constructed and analyzed. It is proven that these solutions are purely perturbative (or power-law asymptotic) series with a finite radius of convergence. Based on these analyses, we find that Gubser-like expanding kinetic systems do not hydrodynamize owing to the failure of the hydrodynamization process which heavily relies on the classification of (non)hydrodynamic modes in the IR regime. This is in contrast to longitudinal boost-invariant plasmas where the asymptotic dynamics is described by a few terms of the hydrodynamic gradient expansion. We finally compare our results for both Bjorken and Gubser conformal kinetic models.

Authors:
 [1];  [2]; ORCiD logo [1];  [1]
  1. North Carolina State Univ., Raleigh, NC (United States). Dept. of Physics
  2. North Carolina State Univ., Raleigh, NC (United States). Dept. of Physics; Jiangxi Normal Univ., Nanchang (China). College of Physics and Communication Electronics
Publication Date:
Research Org.:
North Carolina State University, Raleigh, NC (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1800102
Grant/Contract Number:  
FG02-03ER41260; SC0013036
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2020; Journal Issue: 7; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Physics

Citation Formats

Behtash, Alireza, Kamata, Syo, Martinez, Mauricio, and Shi, Haosheng. Global flow structure and exact formal transseries of the Gubser flow in kinetic theory. United States: N. p., 2020. Web. doi:10.1007/jhep07(2020)226.
Behtash, Alireza, Kamata, Syo, Martinez, Mauricio, & Shi, Haosheng. Global flow structure and exact formal transseries of the Gubser flow in kinetic theory. United States. https://doi.org/10.1007/jhep07(2020)226
Behtash, Alireza, Kamata, Syo, Martinez, Mauricio, and Shi, Haosheng. Thu . "Global flow structure and exact formal transseries of the Gubser flow in kinetic theory". United States. https://doi.org/10.1007/jhep07(2020)226. https://www.osti.gov/servlets/purl/1800102.
@article{osti_1800102,
title = {Global flow structure and exact formal transseries of the Gubser flow in kinetic theory},
author = {Behtash, Alireza and Kamata, Syo and Martinez, Mauricio and Shi, Haosheng},
abstractNote = {In this work we introduce the generic conditions for the existence of a non-equilibrium attractor that is an invariant manifold determined by the long-wavelength modes of the physical system. We investigate the topological properties of the global flow structure of the Gubser flow for the Israel-Stewart theory and a kinetic model for the Boltzmann equation by employing Morse-Smale theory. We present a complete classification of the invariant submanifolds of the flow and determine all the possible flow lines connecting any pair of UV/IR fixed points. The formal transseries solutions to the Gubser dynamical system around the early-time (UV) and late-time (IR) fixed points are constructed and analyzed. It is proven that these solutions are purely perturbative (or power-law asymptotic) series with a finite radius of convergence. Based on these analyses, we find that Gubser-like expanding kinetic systems do not hydrodynamize owing to the failure of the hydrodynamization process which heavily relies on the classification of (non)hydrodynamic modes in the IR regime. This is in contrast to longitudinal boost-invariant plasmas where the asymptotic dynamics is described by a few terms of the hydrodynamic gradient expansion. We finally compare our results for both Bjorken and Gubser conformal kinetic models.},
doi = {10.1007/jhep07(2020)226},
journal = {Journal of High Energy Physics (Online)},
number = 7,
volume = 2020,
place = {United States},
year = {Thu Jul 30 00:00:00 EDT 2020},
month = {Thu Jul 30 00:00:00 EDT 2020}
}

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