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Understanding the nature of solvated electrons is important in studying a range of chemical and biological phenomena. This study investigates the structural and dynamical behavior of an excess electron in water, examining different…

计算物理 · 物理学 2025-06-10 Ritama Kar , Nisanth N. Nair

In models of Pt 111 and Pt 100 surfaces in water, motions of molecules in the first hydration layer are spatially and temporally correlated. To interpret these collective motions, we apply quantitative measures of dynamic heterogeneity that…

材料科学 · 物理学 2015-06-15 Adam P. Willard , David T. Limmer , Paul A. Madden , David Chandler

The results of molecular dynamics simulations of the properties of water in an aqueous ionic solution close to an interface with a model metallic electrode are described. In the simulations the electrode behaves as an ideally polarizable…

统计力学 · 物理学 2014-09-09 Adam P. Willard , Stewart K. Reed , Paul A. Madden , David Chandler

The mobility of water molecules confined in a silica pore is studied by computer simulation in the low hydration regime, where most of the molecules reside close to the hydrophilic substrate. A layer analysis of the single particle dynamics…

统计力学 · 物理学 2009-11-10 P. Gallo , M. Rovere

Molecular electronics is a fascinating area of research with the ability to tune device properties by a chemical tailoring of organic molecules. However, molecular electronics devices often suffer from dispersion and lack of reproducibility…

介观与纳米尺度物理 · 物理学 2013-02-11 Nicolas Clement , David Guerin , Stephane Pleutin , Sylvie Godey , Dominique Vuillaume

We present a study of the solvation properties of model aqueous electrode interfaces. The exposed electrodes we study strongly bind water and have closed packed crystalline surfaces, which template an ordered water adlayer adjacent to the…

统计力学 · 物理学 2015-06-11 David T. Limmer , Adam P. Willard , Paul A. Madden , David Chandler

We have investigated the electron attachment dynamics of uracil in water using accurate wave-function and QM/MM methods. The initial electron attached state is found to be localized on the water and mixing of electronic and nuclear degrees…

化学物理 · 物理学 2020-08-26 Madhubani Mukherjee , Divya Tripathi , Achintya Kumar Dutta

Water molecules confined between biological membranes exhibit a distinctive non-Gaussian displacement distribution, far different from bulk water. Here, we introduce a new transport equation for water molecules in the intermembrane space,…

软凝聚态物质 · 物理学 2024-04-19 Minho Lee , Euihyun Lee , Ji-Hyun Kim , Hyonseok Hwang , Minhaeng Cho , Jaeyoung Sung

The modern means of controlled irradiation by femtosecond lasers or swift heavy ion beams can transiently produce such energy densities in samples that reach collective electronic excitation levels of the warm dense matter state where the…

其他凝聚态物理 · 物理学 2023-02-17 Nikita Medvedev , Roman Voronkov , Alexander E. Volkov

This letter highlights the entropy exchange phenomenon in a coupled binary inter-correlating system following Haldane's non-linear statistical correlation. A unique coupling between a classical and a quantum-like system at the marginal…

统计力学 · 物理学 2025-05-22 Projesh Kumar Roy

We study water between parallel metal walls under applied electric field accounting for the image effect at $T=298$ K. The electric field due to the surface charges serves to attract and orient nearby water molecules, while it tends to a…

软凝聚态物质 · 物理学 2015-07-24 Kyohei Takae , Akira Onuki

Using molecular dynamics simulations, we reveal emergent properties of hydrated electrode interfaces that while molecular in origin are integral to the behavior of the system across long times scales and large length scales. Specifically,…

材料科学 · 物理学 2015-05-20 David T. Limmer , Adam P. Willard

Water-metal interfaces are ubiquitous and play a key role in many chemical processes, from catalysis to corrosion. Whereas water adlayers on atomically flat transition metal surfaces have been investigated in depth, little is known about…

材料科学 · 物理学 2013-05-08 Davide Donadio , Luca M. Ghiringhelli , Luigi Delle Site

Using molecular dynamics simulations we study the dynamics of a water-like TIP5P model of water in hydrophilic and hydrophobic confinement. We find that in case of extreme nanocofinement such that there is only one molecular layer of water…

软凝聚态物质 · 物理学 2010-05-14 Pradeep Kumar

Molecular dynamics simulations are performed to study the temperature-dependent dynamics and structures of the hydration shells of elastin-like and collagen-like peptides. For both model peptides, it is consistently observed that, upon…

软凝聚态物质 · 物理学 2009-02-23 Michael Vogel

The dynamics of water molecules plays a vital role in understanding water. We combined computer simulation and deep learning to study the dynamics of H-bonds between water molecules. Based on ab initio molecular dynamics simulations and a…

无序系统与神经网络 · 物理学 2021-10-19 Jie Huang , Gang Huang , Shiben Li

Water is an associated liquid in which the main intermolecular interaction is the hydrogen bond (HB) which is limited to four per atom, independently of the number of neighbours. We have considered a hydrogen bond net superposed on Bernal's…

统计力学 · 物理学 2009-11-07 Nara Guisoni , Vera Bohomoletz Henriques

Let $\Lambda$ be a connected closed region with smooth boundary contained in the $d$-dimensional continuous torus $\bb T^d$. In the discrete torus $N^{-1} \bb T^d_N$, we consider a nearest neighbor symmetric exclusion process where…

概率论 · 数学 2010-05-19 Tertuliano Franco , Adriana Neumann , Glauco Valle

Active matter represents a broad class of systems that evolve far from equilibrium due to the local injection of energy. Like their passive analogues, transformations between distinct metastable states in active matter proceed through rare…

统计力学 · 物理学 2022-01-17 Avishek Das , Benjamin Kuznets-Speck , David T. Limmer

Energy dissipation in water is very fast and more efficient than in many other liquids. This behavior is commonly attributed to the intermolecular interactions associated with hydrogen bonding. Here, we investigate the dynamic energy flow…

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