论文标题
一种新的方法，是使用细长的探针探测活性玻璃形成液体中相关长度的明显生长
A Novel Method to Probe the Pronounced Growth of Correlation Lengths in an Active Glass-forming Liquids using Elongated Probe
论文作者
论文摘要
玻璃过渡附近平衡玻璃形成液体中相关长度的生长被认为是了解玻璃形成物理的关键发现。这些理解有助于我们理解超冷液体中观察到的各种动态现象。众所周知，至少存在两个不同的长度尺度 - 一种是热力学起源，而另一个是动态的。最近对生物和合成系统中玻璃动力学的观察结果，外部或内部驱动器可以控制动力学，除了通常的热噪声外，还导致了活性物质领域的出现。这些活性系统中玻璃形成物理学是否还伴随着动态和静态长度的问题确实是及时的。在本文中，我们使用类似杆状的细长探针颗粒（一种实验可行的方法）探测模型活动玻璃系统中动态和静态长度的生长。我们表明，这些非平衡系统中的动态和静态长度比被动对应物的生长速度要快得多。然后，我们通过缩放理论使用这些长度来理解违反Stokes-Einstein关系和Stokes-Einstein-Debye的关系。
The growth of correlation lengths in equilibrium glass-forming liquids near the glass transition is considered a critical finding in the quest to understand the physics of glass formation. These understandings helped us understand various dynamical phenomena observed in supercooled liquids. It is known that at least two different length scales exist - one is of thermodynamic origin, while the other is dynamical in nature. Recent observations of glassy dynamics in biological and synthetic systems where the external or internal driving source controls the dynamics, apart from the usual thermal noise, led to the emergence of the field of active matter. A question of whether the physics of glass formation in these active systems is also accompanied by growing dynamic and static lengths is indeed timely. In this article, we probe the growth of dynamic and static lengths in a model active glass system using rod-like elongated probe particles, an experimentally viable method. We show that the dynamic and static lengths in these non-equilibrium systems grow much more rapidly than their passive counterparts. We then offer an understanding of the violation of the Stokes-Einstein relation and Stokes-Einstein-Debye relation using these lengths via a scaling theory.
