6 papers
Attractodynamics in 0+1D
Jean F. Du Plessis, Bruno Scheihing-Hitschfeld, Rachel Steinhorst
Hydrodynamics is a macroscopic theory of long-wavelength dynamics around local thermal equilibrium. We develop attractodynamics, the analogous construction around a far-from-equili…
Critical slowing down and bulk viscosity in binary neutron star mergers
Jamie M. Karthein, Maneesha Sushama Pradeep, Rachel Steinhorst
Hydrodynamic simulations of neutron star mergers rely on the clear separation between the strong-interaction, weak-interaction, and hydrodynamic timescales. In this effective frame…
Updated Astrophysical Equation-of-State Constraints on the Color-Superconducting Gap
Aleksi Kurkela, Krishna Rajagopal, Rachel Steinhorst
We summarize and update using new NICER measurements the results of arXiv:2401.16253, in which we used various astrophysical neutron-star observations to set an upper bound on the…
Attractors Without Scaling: Adiabatic Hydrodynamization With and Without Inelastic Scattering
Krishna Rajagopal, Bruno Scheihing-Hitschfeld, Rachel Steinhorst
We study the process of hydrodynamization in kinetic theories of gluons undergoing boost-invariant expansion using the Adiabatic Hydrodynamization (AH) framework. We study both num…
Adiabatic Hydrodynamization and the Emergence of Attractors: a Unified Description of Hydrodynamization in Kinetic Theory
Krishna Rajagopal, Bruno Scheihing-Hitschfeld, Rachel Steinhorst
"Attractor" solutions for the pre-hydrodynamic, far-from-equilibrium, evolution of the matter produced in relativistic heavy ion collisions have emerged as crucial descriptors of t…
Connecting Pre-Thermal and Hydrodynamizing Attractors With Adiabatic Hydrodynamization
Krishna Rajagopal, Bruno Scheihing-Hitschfeld, Rachel Steinhorst
The far-from equilibrium dynamics of the pre-hydrodynamic quark-gluon plasma (QGP) formed in heavy ion collisions can be characterized by distinct stages, during each of which the…