Adiabatic hydrodynamization and quasinormal modes of nonthermal attractors

Abstract

Nonthermal attractors govern the emergent self-similar dynamics of far-from-equilibrium quantum systems, from ultrarelativistic nuclear collisions to cold-atom experiments. Within the framework of adiabatic hydrodynamization, the approach to a nonthermal attractor is described by the decay of excited states of an effective Hamiltonian. Using an exactly solvable kinetic theory -- the longitudinally expanding, overoccupied gluon plasma dominated by small-angle elastic scattering -- we establish a direct correspondence between the eigenmodes of adiabatic hydrodynamization and the quasinormal mode spectrum of the nonthermal attractor. This equivalence suggests a general framework for identifying universal dynamical structures in nonequilibrium systems. As a byproduct, we derive analytic prescaling solutions for strongly longitudinally expanding systems.

9 pages

References in corpus (18)

• Non-thermal fixed points: effective weak-coupling for strongly correlated systems far from equilibrium
• On the convergence of the gradient expansion in hydrodynamics
• Universality far from equilibrium: From superfluid Bose gases to heavy-ion collisions
• Hydrodynamic attractors in heavy ion collisions: a review
• Pseudospectra of Holographic Quasinormal Modes
• Hydrodynamic Attractors in Ultrarelativistic Nuclear Collisions
• Scaling and adiabaticity in a rapidly expanding gluon plasma
• Universality class of a spinor Bose-Einstein condensate far from equilibrium
• Exponential Approach to the Hydrodynamic Attractor in Yang-Mills Kinetic Theory
• Relativistic Hydrodynamics: A Singulant Perspective
• Universal dynamics and non-thermal fixed points in quantum fluids far from equilibrium
• Prescaling relaxation to nonthermal attractors
• Observation of subdiffusive dynamic scaling in a driven and disordered Bose gas
• Limiting attractors in heavy-ion collisions
• Universal Coarsening in a Homogeneous Two-Dimensional Bose Gas
• Non-modal effects in black hole perturbation theory: Transient Superradiance
• Adiabatic Hydrodynamization and the Emergence of Attractors: a Unified Description of Hydrodynamization in Kinetic Theory
• QNM orthogonality relations for AdS black holes