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We construct a configurational entropy measure in functional space. We apply it to several nonlinear scalar field models featuring solutions with spatially-localized energy, including solitons and bounces in one spatial dimension, and…

高能物理 - 理论 · 物理学 2012-06-22 Marcelo Gleiser , Nikitas Stamatopoulos

In this talk we discuss the possibility of constructing a fluctuation theory for structural glasses in the non-equilibrium aging state. After reviewing well known results in a toy model we discuss some of the key assumptions which support…

无序系统与神经网络 · 物理学 2009-10-31 Andrea Crisanti , Felix Ritort

We discuss a theoretical approach to structural glasses as they happen in real situations. Older ideas based on `configurational entropy', on `fictive temperatures' and on Edwards' `compactivity' are sharpened and unified in an out of…

统计力学 · 物理学 2007-05-23 Jorge Kurchan

We present a computationally efficient method to calculate the configurational entropy of network-forming materials. The method requires only the atomic coordinates and bonds of a single well-relaxed configuration. This is in contrast to…

材料科学 · 物理学 2007-05-23 R. L. C. Vink , G. T. Barkema

We discuss the need for discretization to evaluate the configurational entropy in a general model. We also discuss the prescription using restricted partition function formalism to study the stationary limit of metastable states. We…

统计力学 · 物理学 2009-11-10 F. Semerianov , P. D. Gujrati

We present a study of two model liquids with different interaction potentials, exhibiting similar structure but significantly different dynamics at low temperatures. By evaluating the configurational entropy, we show that the differences in…

软凝聚态物质 · 物理学 2015-07-02 Atreyee Banerjee , Shiladitya Sengupta , Srikanth Sastry , Sarika Maitra Bhattacharyya

We present a theoretical study of classical Wigner crystals in two- and three-dimensional isotropic parabolic traps aiming at understanding and quantifying the configurational uncertainty due to the presence of multiple stable…

等离子体物理 · 物理学 2012-04-27 Arūnas Radzvilavičius , Egidijus Anisimovas

Inorganic glasses, produced by the melt-quenching of a concoction of minerals, compounds, and elements, can possess unique optical and elastic properties along with excellent chemical, and thermal durability. Despite the ubiquitous use of…

材料科学 · 物理学 2021-03-24 R. Ravinder , Suresh Bishnoi , Mohd Zaki , N. M. Anoop Krishnan

We explore the relationship between a machine-learned structural quantity (softness) and excess entropy in simulations of supercooled liquids. Excess entropy is known to scale well the dynamical properties of liquids, but this…

软凝聚态物质 · 物理学 2023-06-07 Ian R. Graham , Paulo E. Arratia , Robert A. Riggleman

Controversy exists regarding the possible existence of a transition between the liquid and glassy states of water. Here we use experimental measurements of the entropy, specific heat, and enthalpy of both liquid and glassy water to…

凝聚态物理 · 物理学 2007-05-23 Francis W. Starr , C. Austen Angell , Robin J. Speedy , H. Eugene Stanley

We compute the low-temperature configurational entropy of a two-dimensional supercooled liquid. Our method, based on a higher-dimensional version of the Grassberger--Procaccia algorithm, can be implemented in a manner that is entirely…

统计力学 · 物理学 2026-05-29 Nina Javerzat , Gerhard Jung , Jorge Kurchan , Misaki Ozawa

We performed calorimetric studies of 26 metallic glasses and calculated the excess entropy and excess enthalpy with respect to their counterpart crystals. On this basis, we introduced a dimensionless entropy-based parameter {\sigma}scl,…

无序系统与神经网络 · 物理学 2025-05-26 J. B. Cui , R. A. Konchakov , G. V. Afonin , A. S. Makarov , G. J. Lyu , J. C. Qiao , N. P. Kobelev , V. A. Khonik

We describe a model for the thermodynamics and dynamics of glass-forming liquids in terms of excitations from an ideal glass state to a Gaussian manifold of configurationally excited states. The quantitative fit of this three parameter…

软凝聚态物质 · 物理学 2015-06-25 Dmitry V. Matyushov , C. A. Angell

We introduce a computational method to discover polymorphs in molecular crystals at finite temperature. The method is based on reproducing the crystallization process starting from the liquid and letting the system discover the relevant…

化学物理 · 物理学 2020-04-10 Pablo M. Piaggi , Michele Parrinello

The configurational entropy of ice is calculated by thermodynamic integration from high to low temperatures. We use Monte Carlo simulations with a simple energy model which reproduces the Bernal-Fowler ice rules. This procedure is found to…

化学物理 · 物理学 2015-06-16 Carlos P. Herrero , Rafael Ramirez

We report a numerical calculation of the total number of disordered jammed configurations $\Omega$ of $N$ repulsive, three-dimensional spheres in a fixed volume $V$. To make these calculations tractable, we increase the computational…

We build a comprehensive methodology for the fast computation of entropy across both solid and liquid phases. The proposed method utilizes a single trajectory of molecular dynamics (MD) to facilitate the calculation of entropy, which is…

计算物理 · 物理学 2024-04-05 Qi-Jun Hong , Zi-Kui Liu

To understand the vibrational and configurational entropy effects for the stability of core-shell and solid-solution bimetallic nanoparticles, we theoretically investigated the excess energy of PdPt nanoparticles, adopting the (PdPt)201…

材料科学 · 物理学 2020-07-14 Takayoshi Ishimoto , Michihisa Koyama

The maximum entropy method has been applied to investigate the oscillating structure in the pbarp- and pp-elastic scattering differential cross-section at high energy and small momentum transfer. Oscillations satisfying quite realistic…

高能物理 - 唯象学 · 物理学 2008-11-26 O. Dumbrajs , J. Kontros , A. Lengyel

A quasi two-dimensional colloidal suspension is studied under the influence of immobilisation (pinning) of a random fraction of its particles. We introduce a novel experimental method to perform random pinning and, with the support of…