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13 papers · 2 filters
Relativistic heat conduction in the large-flux regime
Lorenzo Gavassino
We propose a general procedure for evaluating, directly from microphysics, the constitutive relations of heat-conducting fluids in regimes of large fluxes of heat. Our choice of hy…
Theories of Relativistic Dissipative Fluid Dynamics
Gabriel S. Rocha, David Wagner, Gabriel S. Denicol +2
Relativistic dissipative fluid dynamics finds widespread applications in high-energy nuclear physics and astrophysics. However, formulating a causal and stable theory of relativist…
Mapping GENERIC hydrodynamics into Carter's multifluid theory
Lorenzo Gavassino
We show that the GENERIC model for relativistic heat conduction is a multifluid of Carter. This allows one to compute the multifluid constitutive relations directly from the GENERI…
Applications of emulation and Bayesian methods in heavy-ion physics
Jean-François Paquet
Heavy-ion collisions provide a window into the properties of many-body systems of deconfined quarks and gluons. Understanding the collective properties of quarks and gluons is poss…
The regime of applicability of Israel-Stewart hydrodynamics
David Wagner, Lorenzo Gavassino
Using analytical tools from linear response theory, we systematically assess the accuracy of several microscopic derivations of Israel-Stewart hydrodynamics near local equilibrium.…
Stability of multicomponent Israel-Stewart-Maxwell theory for charge diffusion
Lorenzo Gavassino, Masoud Shokri
We obtain stability criteria for diffusive inviscid multicomponent Israel-Stewart hydrodynamics with and without background or dynamic electromagnetic fields. Our analysis is groun…
Early-times Yang-Mills dynamics and the characterization of strongly interacting matter with statistical learning
Matthew R. Heffernan, Charles Gale, Sangyong Jeon +1
In ultrarelativistic heavy-ion collisions, a plasma of deconfined quarks and gluons is formed within fm/c of the nuclei's impact. The complex dynamics of the collision before $…
Cluster model of 12C in density functional theory framework
A. S. Umar, K. Godbey, C. Simenel
We employ the constrained density functional theory to investigate cluster phenomena for the C nucleus. The proton and neutron densities are generated from the placement of…
Relativistic bulk viscous fluids of Burgers type and their presence in neutron stars
Lorenzo Gavassino
It is well known that a mixture of two chemical components undergoing one chemical reaction is a bulk viscous fluid, where the bulk stress evolves according to the Israel-Stewart t…
Bayesian quantification of strongly-interacting matter with color glass condensate initial conditions
Matthew R. Heffernan, Charles Gale, Sangyong Jeon +1
A global Bayesian analysis of relativistic Pb + Pb collisions at = 2.76 TeV is performed, using a multistage model consisting of an IP-Glasma initial state, a v…
Universality Classes of Relativistic Fluid Dynamics: Applications
L. Gavassino, M. M. Disconzi, J. Noronha
Using a formalism that was recently developed in a companion paper, we rigorously prove the equivalence, in the linear regime, of a number of apparently different relativistic hydr…
Universality Classes of Relativistic Fluid Dynamics: Foundations
Lorenzo Gavassino, Marcelo M. Disconzi, Jorge Noronha
A general organizing principle is proposed that can be used to derive the equations of motion describing the near-equilibrium dynamics of causal and thermodynamically stable relati…
Computational budget optimization for Bayesian parameter estimation in heavy ion collisions
Brandon Weiss, Jean-François Paquet, Steffen A. Bass
Bayesian parameter estimation provides a systematic approach to compare heavy ion collision models with measurements, leading to constraints on the properties of nuclear matter wit…