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相关论文: Anomalous glassy relaxation near the isotropic-nem…

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The Gilroy-Phillips model of relaxational jumps in asymmetric double-well potentials, developed for the Arrhenius-type secondary relaxations of the glass phase, is extended to a formal description of the breakdown of the shear modulus at…

无序系统与神经网络 · 物理学 2007-05-23 U. Buchenau

We discuss the nature of the slow relaxation processes in glass-forming eutectic melts right after melting. For specific, we focus on the binary metallic melt Al--Y, which in addition to the slow relaxation shows unusual non-monotonic…

统计力学 · 物理学 2020-06-24 Mikhail G. Vasin , Vladimir G. Lebedev

Planar oxygen nuclear magnetic resonance (NMR) relaxation and shift data from all cuprate superconductors available in the literature are analyzed. They reveal a temperature independent pseudogap at the Fermi surface, which increases with…

This paper complements a previous study of the isotropic and nematic phases of the Gay-Berne liquid-crystal model [Mehri et al., Phys. Rev. E 105, 064703 (2022)] with a study of its smectic B phase found at high density and low…

软凝聚态物质 · 物理学 2023-12-12 Saeed Mehri , Jeppe C. Dyre , Trond S. Ingebrigtsen

The existence of multiple amorphous states, or polyamorphism, remains one of the most debated phenomena in disordered matter, particularly regarding its microscopic origin and impact on glassy dynamics. Profiting of the enhanced data…

Structural relaxation in binary hard spherical particles has been shown recently to exhibit a wealth of remarkable features when size disparity or mixture's composition is varied. In this paper, we test whether or not similar dynamical…

软凝聚态物质 · 物理学 2014-12-03 Wen-Sheng Xu , Zhao-Yan Sun , Li-Jia An

Ascertainment of the nature of the slow relaxation processes observed after melting in glass-forming eutectic melts is the subject of this work. We claim that the diffusion processes nonlinearity in heterogeneous melt with inclusions of…

统计力学 · 物理学 2023-04-14 M. G. Vasin , V. G. Lebedev , K. Y. Shklyaev , S. G. Menshikova

The gravitational interaction among bodies orbiting in a spherical potential leads to the rapid relaxation of the orbital planes' distribution, a process called vector resonant relaxation. We examine the statistical equilibrium of this…

星系天体物理 · 物理学 2018-04-03 Ádám Takács , Bence Kocsis

We propose a connection between self-similar, focusing dynamics in nonlinear partial differential equations (PDEs) and macroscopic dynamic features of the glass transition. In particular, we explore the divergence of the appropriate…

凝聚态物理 · 物理学 2015-06-24 P. G. Kevrekidis , S. K. Kumar , I. G. Kevrekidis

The binary hard-sphere mixture is one of the simplest representations of a many-body system with competing time and length scales. This model is relevant to fundamentally understand both the structural and dynamical properties of materials,…

A mesoscopic model is proposed to explain the anomalous dynamics in a supercooled liquid as its glass transition temperature is approached from above. The model is based on the assumption of $\beta$ organized $\alpha$ process, with the…

软凝聚态物质 · 物理学 2007-05-23 Dwaipayan Chakrabarti , Biman Bagchi

Using extensive non-equilibrium molecular dynamics simulations, we investigate a glassforming binary Lennard-Jones mixture under shear. Both supercooled liquids and glasses are considered. Our focus is on the characterization of…

软凝聚态物质 · 物理学 2020-08-26 Mehrdad Golkia , Gaurav P. Shrivastav , Pinaki Chaudhuri , Jürgen Horbach

Recent computational investigations in polymeric and non-polymeric binary mixtures have reported anomalous relaxation features when both components exhibit very different mobilities. Anomalous relaxation is characterized by sublinear power…

软凝聚态物质 · 物理学 2015-06-25 Angel J. Moreno , Juan Colmenero

Molecular anisotropy plays an important role in the glass transition of a liquid. Recently, a novel bulk glass state has been discovered by optical microscopy experiments on suspensions of ellipsoidal colloids. 'Liquid glass' is a…

软凝聚态物质 · 物理学 2024-05-16 Mohammed Alhissi , Andreas Zumbusch , Matthias Fuchs

Anomalous non-exponential relaxation in hydrated biomolecules is commonly attributed to the complexity of the free-energy landscapes, similarly to polymers and glasses. It was found recently that the hydrogen-bond breathing of terminal DNA…

生物大分子 · 定量生物学 2017-07-05 Alexey K. Mazur

The quantum Ising model with random couplings and random transverse fields on the Cayley tree is studied by Real-Space-Renormalization in order to construct the whole set of eigenstates. The renormalization rules are analyzed via large…

无序系统与神经网络 · 物理学 2017-12-22 Cecile Monthus

We present molecular dynamics simulation measurements of the viscosities of the Gay-Berne phenomenological model of liquid crystals in the nematic and isotropic phases. The temperature dependence of the rotational and shear viscosities,…

凝聚态物理 · 物理学 2009-10-28 A. M. Smondyrev , G. B. Loriot , R. A. Pelcovits

We study the nonlinear dynamics of a multi-mode random laser using the methods of statistical physics of disordered systems. A replica-symmetry breaking phase transition is predicted as a function of the pump intensity. We thus show that…

无序系统与神经网络 · 物理学 2007-05-23 L. Angelani , C. Conti , G. Ruocco , F. Zamponi

Glass-forming liquids display strong fluctuations -- dynamical heterogeneities -- near their glass transition. By numerically simulating a binary Weeks-Chandler-Andersen liquid and varying both temperature and timescale, we investigate the…

无序系统与神经网络 · 物理学 2011-08-15 Azita Parsaeian , Horacio E. Castillo

In two recent interesting letters evidence was presented for the existence of a growing dynamic correlation length when we approach the glass transition from the liquid phase (a similar divergence is present also in the off-equilibrium…

统计力学 · 物理学 2007-05-23 S. Franz , G. Parisi