59 citations · 460 across the 32 of their papers we have counts for
30 papers
Light-front Hamiltonian jet evolution in the Glasma
Dana Avramescu, Carlos Lamas, Tuomas Lappi +2
We develop a light-front Hamiltonian formalism to study the real-time quantum evolution of a high-energy quark propagating through the Glasma phase of a heavy-ion collision. In thi…
Kinetic and canonical momentum broadening in the Glasma
Dana Avramescu, Carlos Lamas, Tuomas Lappi +2
We lay the foundations for a quantum formalism describing the real-time evolution of particles in the Glasma phase of a heavy-ion collision, focusing on the implications of gauge i…
The leading Lyapunov exponent in the glasma
Pooja, Dana Avramescu, Tuomas Lappi
We show that small perturbations in the boost-invariant color fields of the glasma exhibit an exponential growth with the square root of time. We interpret this growth rate as a Ly…
Initial stage jet momentum broadening in tBLFQ formalism
Dana Avramescu, Carlos Lamas, Tuomas Lappi +2
We study the momentum broadening of a high-energy quark jet in the large density gluon medium created right after the collision of two ultrarelativistic heavy nuclei, the Glasma. P…
Limiting attractors in heavy-ion collisions -- the interplay between bottom-up and hydrodynamic attractors
Kirill Boguslavski, Aleksi Kurkela, Tuomas Lappi +2
In this contribution to the Quark Matter 2023 proceedings, we study the hydrodynamization process in heavy-ion collisions using QCD kinetic theory and introduce the new concept of…
Heavy quark momentum diffusion coefficient during hydrodynamization via effective kinetic theory
Kirill Boguslavski, Aleksi Kurkela, Tuomas Lappi +2
In these proceedings, we compute the heavy quark momentum diffusion coefficient using QCD effective kinetic theory for a plasma going through the bottom-up thermalization scenario…
Limiting attractors in heavy-ion collisions
Kirill Boguslavski, Aleksi Kurkela, Tuomas Lappi +2
We study universal features of the hydrodynamization process in heavy-ion collisions using QCD kinetic theory simulations for a wide range of couplings. We introduce the new concep…
Conserved energy-momentum tensor for real-time lattice simulations
Kirill Boguslavski, Tuomas Lappi, Jarkko Peuron +1
We derive an expression for the energy-momentum tensor in the discrete lattice formulation of pure glue QCD. The resulting expression satisfies the continuity equation for energy c…
Jet quenching parameter in QCD kinetic theory
Kirill Boguslavski, Aleksi Kurkela, Tuomas Lappi +2
We study the jet quenching parameter in a non-equilibrium plasma using the QCD effective kinetic theory. We discuss subleading terms at large jet momentum p, show that our…
Heavy quark diffusion coefficient during hydrodynamization -- non-equilibrium vs. equilibrium
Kirill Boguslavski, Aleksi Kurkela, Tuomas Lappi +2
We compute the heavy quark momentum diffusion coefficient using effective kinetic theory for a system going through bottom-up isotropization until approximate hydrodynamization. We…
Jet momentum broadening during initial stages in heavy-ion collisions
Kirill Boguslavski, Aleksi Kurkela, Tuomas Lappi +2
We study the jet quenching parameter in the initial pre-equilibrium stages of heavy-ion collisions using the QCD kinetic theory description of the anisotropic quark-gluon…
Heavy quark diffusion coefficient in heavy-ion collisions via kinetic theory
Kirill Boguslavski, Aleksi Kurkela, Tuomas Lappi +2
We compute the heavy quark momentum diffusion coefficient using QCD kinetic theory for a system going through bottom-up isotropization in the initial stages of a heavy ion coll…
Fermion and gluon spectral functions far from equilibrium
Kirill Boguslavski, Tuomas Lappi, Sören Schlichting
Motivated by the quark-gluon plasma, we develop a simulation method to obtain the spectral function of (Wilson) fermions non-perturbatively in a non-Abelian gauge theory with large…
Spectral function of fermions in a highly occupied non-Abelian plasma
Kirill Boguslavski, Tuomas Lappi, Mark Mace +1
We develop a method to obtain fermion spectral functions non-perturbatively in a non-Abelian gauge theory with high occupation numbers of gauge fields. After recovering the free fi…
Evolution of initial stage fluctuations in the glasma
Pablo Guerrero-Rodríguez, Tuomas Lappi
We perform a calculation of the one- and two-point correlation functions of energy density and axial charge deposited in the glasma in the initial stage of a heavy ion collision at…
Broad excitations in a 2+1D overoccupied gluon plasma
K. Boguslavski, A. Kurkela, T. Lappi +1
Motivated by the initial stages of high-energy heavy-ion collisions, we study excitations of far-from-equilibrium 2+1 dimensional gauge theories using classical-statistical lattice…
Heavy quark diffusion in an overoccupied gluon plasma
K. Boguslavski, A. Kurkela, T. Lappi +1
We extract the heavy-quark diffusion coefficient κand the resulting momentum broadening <p^2> in a far-from-equilibrium non-Abelian plasma. We find several features in the time dep…
Heavy quark momentum diffusion coefficient in 3D gluon plasma
K. Boguslavski, A. Kurkela, T. Lappi +1
We study the heavy-quark momentum diffusion coefficient in far from equilibrium gluon plasma in a self-similar regime using real-time lattice techniques. We use 3 methods for the e…
Highly occupied gauge theories in 2+1 dimensions: self-similar attractor
K. Boguslavski, A. Kurkela, T. Lappi +1
Motivated by the boost-invariant Glasma state in the initial stages in heavy-ion collisions, we perform classical-statistical simulations of SU(2) gauge theory in 2+1 dimensional s…
Spectral function for overoccupied gluodynamics from classical lattice simulations
K. Boguslavski, A. Kurkela, T. Lappi +1
We study the spectral properties of an overoccupied gluonic system far from equilibrium. Using classical Yang-Mills simulations and linear response theory, we determine the statist…
Probing spectral properties of the QGP with real-time lattice simulations
Kirill Boguslavski, Aleksi Kurkela, Tuomas Lappi +1
We present a new method to obtain spectral properties of a non-Abelian gauge theory in the region where occupation numbers are high. The method to measure the (single-particle) spe…
Spectral function for overoccupied gluodynamics from real-time lattice simulations
K. Boguslavski, A. Kurkela, T. Lappi +1
We study the spectral properties of a highly occupied non-Abelian non-equilibrium plasma appearing ubiquitously in weak coupling descriptions of QCD matter. The spectral function o…
Plasmon mass scale in two dimensional classical nonequilibrium gauge theory
Tuomas Lappi, Jarkko Peuron
We study the plasmon mass scale in weakly coupled strongly interacting nonabelian gauge theory in a two dimensional configuration that mimics the boost invariant initial color fiel…
Plasmon mass scale and quantum fluctuations of classical fields on a real time lattice
Tuomas Lappi, Aleksi Kurkela, Jarkko Peuron
Classical real-time lattice simulations play an important role in understanding non-equilibrium phenomena in gauge theories and are used in particular to model the prethermal evolu…