论文标题
柔性限制导致玻璃状胶体液体中的多种松弛状态
Flexible confinement leads to multiple relaxation regimes in glassy colloidal liquids
论文作者
论文摘要
了解超冷液的放松是一个主要的挑战，限制这样的系统可能会导致令人困惑的行为。在这里，我们利用了光学限制的胶体模型系统，在该系统中，我们将减压用作控制参数。该系统的动力学是``Arrhenius''在低压和中等压力下，但在更高的压力下，放松的速度比预期的要快。我们将这种更快的放松与狭窄边界相邻的密度降低，这是由于柔性壁启用的系统中的局部排序而降低的。
Understanding relaxation of supercooled fluids is a major challenge and confining such systems can lead to bewildering behaviour. Here we exploit an optically confined colloidal model system in which we use reduced pressure as a control parameter. The dynamics of the system are ``Arrhenius'' at low and moderate pressure, but at higher pressures relaxation is faster than expected. We associate this faster relaxation with a decrease in density adjacent to the confining boundary due to local ordering in the system enabled by the flexible wall.
