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Data-driven approaches to inferring the local structures responsible for plasticity in amorphous materials have made substantial contributions to our understanding of the failure, flow, and rearrangement dynamics of supercooled fluids. Some…

软凝聚态物质 · 物理学 2023-08-22 Tomilola M. Obadiya , Daniel M. Sussman

Glasses offer a broad range of tunable thermophysical properties that are linked to their compositions. However, it is challenging to establish a universal composition-property relation of glasses due to their enormous composition and…

软凝聚态物质 · 物理学 2023-08-23 Kumar Ayush , Pooja Sahu , Sk Musharaf Ali , Tarak K Patra

The rapid rise of viscosity or relaxation time upon supercooling is universal hallmark of glassy liquids. The temperature dependence of the viscosity, however, is quite non universal for glassy liquids and is characterized by the system's…

软凝聚态物质 · 物理学 2022-10-12 Indrajit Tah , Sean A. Ridout , Andrea J. Liu

The development by machine learning of models predicting materials' properties usually requires the use of a large number of consistent data for training. However, quality experimental datasets are not always available or self-consistent.…

材料科学 · 物理学 2019-01-29 Kai Yang , Xinyi Xu , Benjamin Yang , Brian Cook , Herbert Ramos , Mathieu Bauchy

Understanding the dynamic processes of the glassy system continues to be challenging. Recent advances have shown the power of graph neural networks (GNNs) for determining the correlation between structure and dynamics in the glassy system.…

无序系统与神经网络 · 物理学 2023-10-18 Xiao Jiang , Zean Tian , Kenli Li

To experimentally search for signals of the Gardner transition, an active quasi-thermal granular glass is constructed using a monolayer of air-fluidized star-shaped granular particles. The pressure of the system is controlled by adjusting…

软凝聚态物质 · 物理学 2021-11-09 Hongyi Xiao , Andrea J. Liu , Douglas J. Durian

We have considered the dynamical evolution of cellular patterns controlled by a stochastic Glauber process determined by the deviations of local cell topology from that of a crystalline structure. Above a critical temperature evolution is…

无序系统与神经网络 · 物理学 2009-10-31 Tomaso Aste , David Sherrington

Since their invention in the 1980s [1], optical tweezers have found a wide range of applications, from biophotonics and mechanobiology to microscopy and optomechanics [2, 3, 4, 5]. Simulations of the motion of microscopic particles held by…

Despite the enormous theoretical and application interests, a fundamental understanding of the glassy dynamics remains elusive. The static properties of glassy and ordinary liquids are similar, but their dynamics are dramatically different.…

软凝聚态物质 · 物理学 2023-11-21 Puneet Pareek , Monoj Adhikari , Chandan Dasgupta , Saroj Kumar Nandi

Glasses and gels are the two dynamically arrested, disordered states of matter. Despite their importance, their similarities and differences remain elusive, especially at high density. We identify dynamical and structural signatures which…

软凝聚态物质 · 物理学 2014-09-22 C. Patrick Royall , Stephen R. Williams , Hajime Tanaka

The complexity of glasses makes it challenging to explain their dynamics. Machine Learning (ML) has emerged as a promising pathway for understanding glassy dynamics by linking their structural features to rearrangement dynamics. Support…

软凝聚态物质 · 物理学 2025-02-11 Arabind Swain , Sean Alexander Ridout , Ilya Nemenman

Machine learning (ML) methods provide advanced means for understanding inherent patterns within large and complex datasets. Here, we employ the principal component analysis (PCA) and the diffusion map (DM) techniques to evaluate the glass…

软凝聚态物质 · 物理学 2024-07-01 Artem Glova , Mikko Karttunen

We investigate a binary Lennard-Jones mixture with molecular dynamics simulations. We consider first a system cooled linearly in time with the cooling rate gamma. By varying gamma over almost four decades we study the influence of the…

统计力学 · 物理学 2015-06-25 K. Vollmayr-Lee , W. Kob , K. Binder , A. Zippelius

The origins of rapid dynamical slow down in glass forming liquids in the growth of static length scales, possibly associated with identifiable structural ordering, is a much debated issue. Growth of medium range crystalline order (MRCO) has…

软凝聚态物质 · 物理学 2018-08-29 Indrajit Tah , Shiladitya Sengupta , Srikanth Sastry , Chandan Dasgupta , Smarajit Karmakar

We report results of non-equilibrium molecular dynamics simulations of a one-component glassy system under the influence of a shear flow, with the aim of investigating shear induced ordering of this system. In spite of the very low…

材料科学 · 物理学 2009-11-13 Anatolii Mokshin , Jean-Louis Barrat

We show that applying simple dynamical rules to Baxter's eight-vertex model leads to a system which resembles a glass-forming liquid. There are analogies with liquid, supercooled liquid, glassy and crystalline states. The disordered phases…

统计力学 · 物理学 2007-05-23 Robert L. Jack , Juan P. Garrahan , David Sherrington

The quench dynamics of glassy systems are challenging. Due to aging, the system never reaches a stationary state but instead evolves on emergent scales that grow with its age. This slow evolution complicates field-theoretic descriptions, as…

无序系统与神经网络 · 物理学 2025-12-12 Johannes Lang , Subir Sachdev , Sebastian Diehl

Normalizing flows can transform a simple prior probability distribution into a more complex target distribution. Here, we evaluate the ability and efficiency of generative machine learning methods to sample the Boltzmann distribution of an…

软凝聚态物质 · 物理学 2024-09-16 Gerhard Jung , Giulio Biroli , Ludovic Berthier

Glass-like objects can be seen everywhere in our daily life which are very hard for existing methods to segment them. The properties of transparencies pose great challenges of detecting them from the chaotic background and the vague…

计算机视觉与模式识别 · 计算机科学 2024-02-15 Zhiyu Xu , Qingliang Chen

In polycrystalline materials, grain boundaries are sites of enhanced atomic motion, but the complexity of the atomic structures within a grain boundary network makes it difficult to link the structure and atomic dynamics. Here we use a…