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View article: Condensation and prescaling in spatial Polyakov loop correlations far from equilibrium
Condensation and prescaling in spatial Polyakov loop correlations far from equilibrium Open
The far-from-equilibrium dynamics of spatial Polyakov loop correlations, which provide gauge-invariant observables akin to effective particle numbers for gluon plasmas, are investigated within real-time SU(Nc) lattice gauge theory at weak …
View article: Far from equilibrium hydrodynamics of nonthermal fixed points
Far from equilibrium hydrodynamics of nonthermal fixed points Open
Nonthermal fixed points are paradigmatic far-from-equilibrium phenomena of relevance to high-energy physics, cosmology, and cold atomic gases. We propose that, despite their intrinsically nonequilibrium nature, nonthermal fixed points give…
View article: Coupling renormalization flow in the strongly interacting regime of an asymptotically free quantum field theory in four dimensions
Coupling renormalization flow in the strongly interacting regime of an asymptotically free quantum field theory in four dimensions Open
We consider a scalar quantum field theory with global O(N)3 symmetry in four Euclidean dimensions and solve it numerically in closed form in the large-N limit. For imaginary tetrahedral coupling the theory is asymptotically free, with stab…
View article: Prescaling Relaxation to Nonthermal Attractors
Prescaling Relaxation to Nonthermal Attractors Open
We study how isotropic and homogeneous far-from-equilibrium quantum systems relax to nonthermal attractors, which are of interest for cold atoms and nuclear collisions. We demonstrate that a first-order ordinary differential equation gover…
View article: Asymptotic freedom in a strongly interacting scalar quantum field theory in four Euclidean dimensions
Asymptotic freedom in a strongly interacting scalar quantum field theory in four Euclidean dimensions Open
We show that scalar quantum field theory in four Euclidean dimensions with global $O(N)^3$ symmetry and imaginary tetrahedral coupling is asymptotically free and bounded from below in the large-N limit. While the Hamiltonian is non-Hermiti…
View article: Prescaling relaxation to nonthermal attractors
Prescaling relaxation to nonthermal attractors Open
We study how isotropic and homogeneous far-from-equilibrium quantum systems relax to nonthermal attractors, which are of interest for cold atoms and nuclear collisions. We demonstrate that a first-order ordinary differential equation gover…
View article: Asymptotic freedom in a strongly interacting scalar quantum field theory in four Euclidean dimensions
Asymptotic freedom in a strongly interacting scalar quantum field theory in four Euclidean dimensions Open
We show that scalar quantum field theory in four Euclidean dimensions with global $O(N)^3$ symmetry and imaginary tetrahedral coupling is asymptotically free and bounded from below in the large-N limit. While the Hamiltonian is non-Hermiti…
View article: Stable and Unstable Perturbations in Universal Scaling Phenomena Far from Equilibrium
Stable and Unstable Perturbations in Universal Scaling Phenomena Far from Equilibrium Open
We study the dynamics of perturbations around nonthermal fixed points associated with universal scaling phenomena in quantum many-body systems far from equilibrium. For an N-component scalar quantum field theory in 3+1 space-time dimension…
View article: Stable and unstable perturbations in universal scaling phenomena far from equilibrium
Stable and unstable perturbations in universal scaling phenomena far from equilibrium Open
We study the dynamics of perturbations around nonthermal fixed points associated to universal scaling phenomena in quantum many-body systems far from equilibrium. For an N-component scalar quantum field theory in 3+1 space-time dimensions,…