Non-equilibrium statistical physics of interacting particles with diffusive dynamics and particle creation/annihilation

具有扩散动力学和粒子产生/湮灭的相互作用粒子的非平衡统计物理

• 批准号: 2602536
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2602536
• 关键词: Non; equilibrium; statistical; physics; interacting

Janik's project will focus on the non-equilibrium statistical physics of interacting particles where diffusive dynamics is combined with particle creation/annihilation. This broad class of models exhibit a rich phenomenology, and describe a range of physical systems that include populations of interacting organisms (where creation/annihilation would correspond to birth/death), and competition between turbulent and laminar fluid flow (via the connection to the directed percolation universality class). We will focus initially on systems with emergent cyclic dynamics (for example, periodic sequences of population growth and collapse), and combine theoretical and numerical work to improve our fundamental understanding of aspects of their behaviour such as fluctuations, entropy production, and rare event dynamics.

Janik 的项目将重点研究相互作用粒子的非平衡统计物理，其中扩散动力学与粒子产生/湮灭相结合。这一类广泛的模型展示了丰富的现象学，并描述了一系列物理系统，其中包括相互作用的生物体种群（其中创造/毁灭对应于出生/死亡），以及湍流和层流流体流动之间的竞争（通过与定向渗透普遍性类）。我们将首先关注具有突发循环动力学的系统（例如，人口增长和崩溃的周期性序列），并将理论和数值工作结合起来，以提高我们对其行为方面的基本理解，例如波动、熵产生和罕见事件动力学。