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Second-order (2+1) -dimensional anisotropic hydrodynamics

Journal Article · · Physical Review C, Nuclear Physics
 [1];  [2];  [3]
  1. The Ohio State Univ., Columbus, OH (United States); The Ohio State University
  2. The Ohio State Univ., Columbus, OH (United States)
  3. Kent State Univ., Kent, OH (United States)
We present a complete formulation of second-order (2+1)-dimensional anisotropic hydrodynamics. The resulting framework generalizes leading-order anisotropic hydrodynamics by allowing for deviations of the one-particle distribution function from the spheroidal form assumed at leading order. We derive complete second-order equations of motion for the additional terms in the macroscopic currents generated by these deviations from their kinetic definition using a Grad-Israel-Stewart 14-moment ansatz. The result is a set of coupled partial differential equations for the momentum-space anisotropy parameter, effective temperature, the transverse components of the fluid four-velocity, and the viscous tensor components generated by deviations of the distribution from spheroidal form. We then perform a quantitative test of our approach by applying it to the case of one-dimensional boost-invariant expansion in the relaxation time approximation (RTA) in which case it is possible to numerically solve the Boltzmann equation exactly.We demonstrate that the second-order anisotropic hydrodynamics approach provides an excellent approximation to the exact (0+1)-dimensional RTA solution for both small and large values of the shear viscosity.
Research Organization:
The Ohio State Univ., Columbus, OH (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Grant/Contract Number:
SC0004104; SC0004286
OSTI ID:
1604545
Alternate ID(s):
OSTI ID: 1179929
Journal Information:
Physical Review C, Nuclear Physics, Journal Name: Physical Review C, Nuclear Physics Journal Issue: 5 Vol. 90; ISSN 0556-2813; ISSN PRVCAN
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Prescaling and far-from-equilibrium hydrodynamics in the quark-gluon plasma journal January 2021
Viscous cosmologies journal October 2019
New theories of relativistic hydrodynamics in the LHC era journal February 2018
Including off-diagonal anisotropies in anisotropic hydrodynamics journal July 2019
Exact solutions and attractors of higher-order viscous fluid dynamics for Bjorken flow journal September 2019
Relativistic third-order viscous corrections to the entropy four-current from kinetic theory journal February 2015
Pre-equilibrium evolution effects on heavy-ion collision observables journal June 2015
Event-by-event fluctuations in a perturbative QCD + saturation + hydrodynamics model: Determining QCD matter shear viscosity in ultrarelativistic heavy-ion collisions journal February 2016
Anisotropic hydrodynamics with a scalar collisional kernel journal April 2018
Studying the validity of relativistic hydrodynamics with a new exact solution of the Boltzmann equation journal December 2014
Derivation of anisotropic dissipative fluid dynamics from the Boltzmann equation journal June 2016
Bottomonium suppression using a lattice QCD vetted potential journal January 2018
Anisotropic nonequilibrium hydrodynamic attractor journal February 2018
Far-from-equilibrium attractors and nonlinear dynamical systems approach to the Gubser flow journal February 2018
Paramagnetic squeezing of a uniformly expanding quark-gluon plasma in and out of equilibrium journal March 2019
Dynamical systems and nonlinear transient rheology of the far-from-equilibrium Bjorken flow journal June 2019
Prescaling and Far-from-Equilibrium Hydrodynamics in the Quark-Gluon Plasma journal March 2019
Heavy-flavour and quarkonium production in the LHC era: from proton–proton to heavy-ion collisions journal February 2016
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Relativistic Hydrodynamics in Heavy-Ion Collisions: General Aspects and Recent Developments journal January 2016
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Studying the validity of relativistic hydrodynamics with a new exact solution of the Boltzmann equation text January 2014
Relativistic third-order viscous corrections to the entropy four-current from kinetic theory text January 2014
Anisotropic Flow and Jet Quenching in Relativistic Nuclear Collisions text January 2015
Pre-equilibrium evolution effects on heavy-ion collision observables preprint January 2015
Heavy-flavour and quarkonium production in the LHC era: from proton-proton to heavy-ion collisions text January 2015
Relativistic hydrodynamics in heavy-ion collisions: general aspects and recent developments text January 2016
Far-from-equilibrium attractors and nonlinear dynamical systems approach to the Gubser flow text January 2017
Including off-diagonal anisotropies in anisotropic hydrodynamics text January 2019
Exact solutions and attractors of higher-order viscous fluid dynamics for Bjorken flow text January 2019

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