标题： 振动颗粒物质中相分离的麦克斯韦构造？ 显示英文标题

标题： A Maxwell Construction for Phase Separation in Vibrated Granular Matter?

摘要： 实验和计算机模拟被进行以研究在振动下发生相分离的颗粒气体中的排序原理。 稀相和密相的密度被发现遵循杠杆定律。 发现麦克斯韦构造能够非常准确地预测共存压力和双节密度，尽管压力-体积特性$P(v)$并不是等温线。 虽然系统远离平衡且能量守恒被强烈破坏，但我们从机械功和波动粒子流的最小化中推导出该构造。 显示英文摘要

摘要： Experiments and computer simulations are carried out to investigate ordering principles in a granular gas which phase separates under vibration. The densities of the dilute and the dense phase are found to follow a lever rule. A Maxwell construction is found to predict both the coexisting pressure and binodal densities remarkably well, despite the fact that the pressure-volume characteristic $P(v)$ is not an isotherm. Although the system is far from equilibrium and energy conservation is strongly violated, we derive the construction from the minimization of mechanical work and fluctuating particle currents.