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    Initial Stages 2019

    Jun 24 – 28, 2019
    US/Eastern timezone
    5th International Conference on the Initial Stages in High-Energy Nuclear Collisions

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    Session

    Parallel: Approach to Equilibrium

    Jun 25, 2019, 2:00 PM

    Conveners

    Parallel: Approach to Equilibrium

    • Jacquelyn Noronha-Hostler (University of Houston)

    Presentation materials

    There are no materials yet.

    1. 81. Connecting far-from-equilibrium hydrodynamics, resummed transport coefficients, and attractor solutions
      Jorge Noronha (Universidade de Sao Paulo)
      6/25/19, 2:00 PM
      Approach to equilibrium (weak & strong coupling)
      Oral

      After briefly reviewing recent developments in the field, we show how far-from-equilibrium hydrodynamics may be systematically defined, for arbitrary flow profiles, in terms of a generalized tensorial expansion with transport coefficients that contain an all order resummation in gradients. We discuss how this approach naturally relates to hydrodynamic attractor solutions found both at weak...

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    2. 35. Stochastic hydrodynamics and long time tails of a non-equilibrium fluid
      Dr Mauricio Martinez (North Carolina State University)
      6/25/19, 2:20 PM
      Approach to equilibrium (weak & strong coupling)
      Oral

      We investigate the impact of hydrodynamic fluctuations on correlation functions of a relativistic fluid with a conserved U(1) charge. The kinetic equations for the two-point functions of pressure, momentum and heat energy densities are derived within the framework of stochastic hydrodynamics. The leading non-analytic contributions to the energy-momentum tensor as well as the U(1) current are...

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    3. 49. Self-similarity and spectral functions of non-Abelian plasmas in 2+1D
      Dr Jarkko Peuron (ECT*)
      6/25/19, 2:40 PM
      Approach to equilibrium (weak & strong coupling)
      Oral

      To better understand the dynamics of initial stages in heavy-ion collisions, we perform classical-statistical simulations of SU(2) gauge theory in 2+1 dimensions. We find that highly occupied non-Abelian plasmas approach the same 2+1D self-similar state at late times of their far-from-equilibrium evolution, irrespective of details of their initial conditions, and we determine the scaling...

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    4. 126. Off-equilibrium infrared structure of self-interacting scalar fields: Universal scaling, Vortex-antivortex superfluid dynamics and Bose-Einstein condensation
      Qun Wang (University of science and technology of China)
      6/25/19, 3:00 PM
      Approach to equilibrium (weak & strong coupling)
      Oral

      We map the infrared dynamics of a relativistic single component (N=1) interacting scalar field theory to that of nonrelativistic complex scalar fields. The Gross-Pitaevskii (GP) equation, describing the real time dynamics of single component ultracold Bose gases, is obtained at first nontrivial order in an expansion proportional to the powers of λϕ^2/m^2 where λ, ϕ and m are the coupling...

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    5. 71. Holographic collisions with baryon number at intermediate coupling
      Wilke van der Schee (Utrecht University)
      6/25/19, 3:20 PM
      Approach to equilibrium (weak & strong coupling)
      Oral

      In holographic heavy ion collisions it is possible to follow both the energy density and a globally conserved (baryon) number density throughout the evolution, dual to a metric and Maxwell field in the dual bulk theory, respectively. At infinite coupling, past work has shown that after the collision the baryon number ends up around mid-rapidity, which is different from high energy heavy ion...

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    6. 12. Anisotropic hydrodynamics with a realistic collisional kernel
      Dekrayat Almaalol (Kent State Uinversity)
      6/25/19, 3:40 PM
      Initial conditions for hydrodynamics & transport coefficients
      Oral

      In this work, we implement an effective kinetic theory based scattering kernel in the anisotropic hydrodynamics (aHydro) formalism. We compare the realistic kernel results to those obtained from aHydro with the Anderson-Witting scattering kernel (RTA). For the purpose of this study, we consider a conformal system undergoing transversally-homogenous and boost-invariant Bjorken expansion. The...

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    7. 201. Anisotropic hydrodynamics with a realistic collisional kernel
      Dekrayat Almaalol (Kent State Uinversity)
    8. 196. Connecting far-from-equilibrium hydrodynamics, resummed transport coefficients, and attractor solutions
      Jorge Noronha (Universidade de Sao Paulo)
    9. 200. Holographic collisions with baryon number at intermediate coupling
      Wilke van der Schee (Utrecht University)
    10. 199. Off-equilibrium infrared structure of self-interacting scalar fields: Universal scaling, Vortex-antivortex superfluid dynamics and Bose-Einstein condensation
      Qun Wang (University of science and technology of China)
    11. 198. Self-similarity and spectral functions of non-Abelian plasmas in 2+1D
      Dr Jarkko Peuron (European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*))
    12. 197. Stochastic hydrodynamics and long time tails of a non-equilibrium fluid
      Dr Mauricio Martinez (North Carolina State University)
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