Chen Weiguo, Greiner Carsten, Xu Zhe
Department of Physics, Tsinghua University and Collaborative Innovation Center of Quantum Matter, Beijing 100084, China.
Institut für Theoretische Physik, Johann Wolfgang Goethe-Universität Frankfurt, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany.
Phys Rev E. 2023 Jun;107(6-1):064131. doi: 10.1103/PhysRevE.107.064131.
Persistent nonequilibrium effects such as the memory of the initial state, the ballistic diffusion, and the break of the equipartition theorem and the ergodicity in Brownian motions are investigated by analytically solving the generalized Langevin equation of nonrelativistic Brownian particles with colored noise. These effects can also be observed in the Brownian motion of relativistic particles by numerically solving the generalized Langevin equation for specially chosen memory kernels. Our analyses give rise to think about the possible anomalous motion of heavy quarks in relativistic heavy-ion collisions.
通过解析求解具有色噪声的非相对论布朗粒子的广义朗之万方程，研究了诸如初始状态记忆、弹道扩散、能量均分定理的破坏以及布朗运动中的遍历性等持续的非平衡效应。通过对特别选择的记忆核数值求解广义朗之万方程，这些效应在相对论粒子的布朗运动中也能被观察到。我们的分析引发了对相对论重离子碰撞中重夸克可能的反常运动的思考。
