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相关论文: Glassy phases in Random Heteropolymers with correl…

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We propose a new analytic approach to study the phase diagram of random heteropolymers, based on the cavity method. For copolymers we analyze the nature and phenomenology of the glass transition as a function of sequence correlations.…

无序系统与神经网络 · 物理学 2009-11-10 A. Montanari , M. Mueller , M. Mezard

We investigate the quantum phases of monodispersed bosonic gases confined to a triangular lattice and interacting via a class of soft-shoulder potentials. The latter correspond to soft-core potentials with an additional hard-core onsite…

量子气体 · 物理学 2016-04-06 Adriano Angelone , Fabio Mezzacapo , Guido Pupillo

We study at- and out-of-equilibrium dynamics of a single homopolymer chain at low temperature using molecular dynamics simulations. The main quantities of interest are the average root mean square displacement of the monomers below the…

软凝聚态物质 · 物理学 2009-11-07 Nikolay V. Dokholyan , Estelle Pitard , Sergey V. Buldyrev , H. Eugene Stanley

In this paper we extend the Gaussian self-consistent method to permit study of the equilibrium and kinetics of conformational transitions for heteropolymers with any given primary sequence. The kinetic equations earlier derived by us are…

软凝聚态物质 · 物理学 2009-10-31 E. G. Timoshenko , Yu. A. Kuznetsov , K. A. Dawson

We use theory and simulations to investigate the existence of amorphous glassy states in ultrasoft colloids. We combine the hyper-netted chain approximation with mode-coupling theory to study the dynamic phase diagram of soft repulsive…

软凝聚态物质 · 物理学 2010-12-16 Ludovic Berthier , Angel J. Moreno , Grzegorz Szamel

We present a Bethe approximation to study lattice models of linear polymers. The approach is variational in nature and based on the cluster variation method (CVM). We focus on a model with $(i)$ a nearest neighbor attractive energy…

统计力学 · 物理学 2009-10-31 Stefano Lise , Amos Maritan , Alessandro Pelizzola

In this paper we analyse both the dynamics and the high density physics of the infinite dimensional lattice gas model for random heteropolymers recently introduced in \cite{jort}. Restricting ourselves to site-disordered heteropolymers, we…

无序系统与神经网络 · 物理学 2009-11-07 H. Chakravorty , J. van Mourik , A. C. C. Coolen

Using molecular dynamics simulation, we investigate the slow dynamics of a supercooled binary mixture of soft particles interacting with a generalized Hertzian potential. At low density, it displays typical slow dynamics near its glass…

软凝聚态物质 · 物理学 2016-10-18 Ryoji Miyazaki , Takeshi Kawasaki , Kunimasa Miyazaki

We study the phase ordering dynamics of a two dimensional model colloidal solid using molecular dynamics simulations. The colloid particles interact with each other with a Hamaker potential modified by the presence of equatorial "patches"…

无序系统与神经网络 · 物理学 2014-12-30 Chandana Mondal , Smarajit Karmakar , Surajit Sengupta

We consider a microscopic model of a polymer blend that is prone to phase separation. Permanent crosslinks are introduced between randomly chosen pairs of monomers, drawn from the Deam-Edwards distribution. Thereby, not only density but…

软凝聚态物质 · 物理学 2009-11-11 Christian Wald , Paul M. Goldbart , Annette Zippelius

We study the interplay of superfluidity and glassy ordering of hard core bosons with random, frustrating interactions. This is motivated by bosonic systems such as amorphous supersolid, disordered superconductors with preformed pairs, and…

无序系统与神经网络 · 物理学 2013-05-30 Xiaoquan Yu , Markus Mueller

We define a lattice model for the interaction of a polymer with water. We solve the model in a suitable approximation. In the case of a non-polar homopolymer, for reasonable values of the parameters, the polymer is found in a non-compact…

统计力学 · 物理学 2009-10-31 Pierpaolo Bruscolini , Lapo Casetti

Given the wide range of length scales, the analysis of polymer systems often requires coarse-graining, for which various levels of description may be possible depending on the phenomenon under consideration. Here, we provide a super-coarse…

软凝聚态物质 · 物理学 2024-09-05 Naoki Iso , Yuki Norizoe , Takahiro Sakaue

We study a random heteropolymer model with Langevin dynamics, in the supersymmetric formulation. Employing a procedure similar to one that has been used in static calculations, we construct an ensemble in which the affinity of the system…

统计力学 · 物理学 2009-11-07 Zoran Konkoli , John Hertz

We investigate a lattice model of polymers where the nearest-neighbour monomer-monomer interaction strengths differ according to whether the local configurations have so-called ``hydrogen-like'' formations or not. If the interaction…

软凝聚态物质 · 物理学 2009-11-13 J Krawczyk , A L Owczarek , T Prellberg

In a contact density chain-growth study we investigate the solubility-temperature pseudo-phase diagram of a lattice polymer in a cavity with an attractive surface. In addition to the main phases of adsorbed and desorbed conformations we…

软凝聚态物质 · 物理学 2009-11-13 Michael Bachmann , Wolfhard Janke

We study correlated phases occurring in the flat lowest band of the dice lattice model at flux density one half. We discuss how to realize the dice lattice model, also referred to as the T_3 lattice, in cold atomic gases. We construct the…

介观与纳米尺度物理 · 物理学 2012-01-26 Gunnar Moller , Nigel R. Cooper

We consider ``lattice glass models'' in which each site can be occupied by at most one particle, and any particle may have at most l occupied nearest neighbors. Using the cavity method for locally tree-like lattices, we derive the phase…

统计力学 · 物理学 2015-06-24 O. Rivoire , G. Biroli , O. C. Martin , M. Mezard

We introduce a lattice model of dimers with directional interactions as a paradigm of molecular fluids or strongly correlated Cooper pairs in electronic systems. The model supports an intermediate phase that is common to both systems. There…

材料科学 · 物理学 2007-05-23 F. Semerianov , P. D. Gujrati

We consider a minimal model to investigate the quantum phases of hardcore, polarized dipolar atoms confined in multilayer optical lattices. The model is a variant of the extended Bose-Hubbard model, which incorporates intralayer repulsion…

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