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The kinetics of the chiral phase transition is studied within a linear quark-mesonσ model, using a Monte-Carlo approach to semiclassical particle-field dynamics. The meson fields are described on the mean-field level and quarks and antiquarks as ensembles of test particles. Collisions between quarks and antiquarks as well as the qq annihilation to σ mesons… (More)

Abstract Particles and fields are standard components in numerical calculations like transport simulations in nuclear physics and have well understood dynamics. Still, a common problem is the interaction between particles and fields due to their different formal description. Particle interactions are discrete, point-like events while field dynamics is… (More)

- Alex Meistrenko, Hendrik van Hees, Kai Zhou, Carsten Greiner
- Physical review. E
- 2016

We apply a Boltzmann approach to the kinetic regime of a relativistic Bose-Einstein condensate of scalar bosons by decomposing the one-particle distribution function in a condensate part and a nonzero momentum part of excited modes, leading to a coupled set of evolution equations which are then solved efficiently with an adaptive higher order Runge-Kutta… (More)

- Christian Wesp, Hendrik van Hees, Alex Meistrenko, Carsten Greiner
- Physical review. E, Statistical, nonlinear, and…
- 2015

Particles and fields are standard components in numerical calculations like transport simulations in nuclear physics and have well-understood dynamics. Still, a common problem is the interaction between particles and fields due to their different formal description. Particle interactions are discrete, pointlike events while field dynamics is described with… (More)

- Julian Schmidt, Alex Meistrenko, Hendrik van Hees, Zhe Xu, Carsten Greiner
- Physical review. E, Statistical, nonlinear, and…
- 2015

We present an efficient method for simulating a stationary Gaussian noise with an arbitrary covariance function, and then we study numerically the impact of time-correlated noise on the time evolution of a (1+1)-dimensional generalized Langevin equation by comparing also to analytical results. Finally, we apply our method to the generalized Langevin… (More)

- A Meistrenko, C Wesp, H van Hees, C Greiner
- 2013

Based on the 2PI quantum effective action of the linear sigma model with constituent quarks, we develop a transport approach to study systems out of equilibrium. In particular, we focus on the chiral phase transition as well as the critical point, where nonequilibrium effects near the phase transition give rise to critical behavior such as the fluctuation… (More)

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