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Solid state physics deals with systems composed of atoms with strongly bound electrons. The tunneling probability of each electron is determined by interactions that typically extend to neighboring sites, as their corresponding wave…

We study numerically how multiple deformable capsules squeeze into a constriction. This situation is largely encountered in microfluidic chips designed to manipulate living cells, which are soft entities. We use fully three-dimensional…

软凝聚态物质 · 物理学 2021-12-15 Clément Bielinski , Othmane Aouane , Jens Harting , Badr Kaoui

To deploy the airframe digital twin or to conduct probabilistic evaluations of the remaining life of a structural component, a (near) real-time crack-growth simulation method is critical. In this paper, a reduced-order simulation approach…

应用物理 · 物理学 2022-11-14 Xuan Zhou , Shuangxin He , Leiting Dong , Satya N. Atluri

A procedure to obtain single-electron wavefunctions within the tight-binding formalism is proposed. It is based on linear combinations of Slater-type orbitals whose screening coefficients are extracted from the optical matrix elements of…

材料科学 · 物理学 2016-09-16 R. Benchamekh , F. Raouafi , J. Even , F. Ben Cheikh Larbi , P. Voisin , J. -M. Jancu

Wormlike micelles are self-assemblies of polymer chains that can break and recombine reversibly. In this paper, we derive a thermodynamically consistent two species micro-macro model of wormlike micellar solutions by employing an energetic…

流体动力学 · 物理学 2021-04-30 Yiwei Wang , Teng-Fei Zhang , Chun Liu

In order to discuss superconductivity in orbital degenerate systems, a microscopic Hamiltonian is introduced. Based on the degenerate model, a strong-coupling theory of superconductivity is developed within the fluctuation exchange (FLEX)…

超导电性 · 物理学 2016-08-31 Tetsuya Takimoto , Takashi Hotta , Kazuo Ueda

Structure and thermodynamics in restricted primitive model electrolytes are examined using three recently developed versions of a linear form of the modified Poisson-Boltzmann equation. Analytical expressions for the osmotic coefficient and…

软凝聚态物质 · 物理学 2021-06-28 L. B. Bhuiyan

The article reviews recent developments in the theory of fluctuations and correlations of energy levels and eigenfunction amplitudes in diffusive mesoscopic samples. Various spatial geometries are considered, with emphasis on…

无序系统与神经网络 · 物理学 2009-10-31 Alexander D. Mirlin

Roboticists have been seeking to address this situation in recent years through the use of soft robots. Unfortunately, identifying appropriate models for the complete analysis and investigation of soft robots for design and control purposes…

机器人学 · 计算机科学 2022-05-24 Soheil Habibian , Benjamin B. Wheatley , Suehye Bae , Joon Shin , Keith W. Buffinton

A general approach to simulate the mechanical behavior of textile materials by taking into account all their constitutive elementary fibers and contacts between them is presented in this paper. A finite element code, based on an implicit…

材料科学 · 物理学 2009-12-08 Damien Durville

This paper is devoted to the analysis of a numerical scheme based on the Finite Element Method for approximating the solution of Koiter's model for a linearly elastic elliptic membrane shell subjected to remaining confined in a prescribed…

数值分析 · 数学 2024-03-12 Xin Peng , Paolo Piersanti , Xiaoqin Shen

Many of the important phases observed in twisted transition metal dichalcogenide homobilayers are driven by short-range interactions, which should be captured by a local tight binding description since no Wannier obstruction exists for…

强关联电子 · 物理学 2024-10-02 Valentin Crépel , Andrew Millis

We consider an open quantum system in contact with fermionic metallic reservoirs in a nonequilibrium setup. For the case of spin, orbital or potential fluctuations, we present a systematic formulation of real-time renormalization group at…

介观与纳米尺度物理 · 物理学 2014-09-19 Frank Reininghaus , Mikhail Pletyukhov , Herbert Schoeller

We study valence fluctuations at finite temperatures in the extended periodic Anderson model, where the Coulomb interaction between conduction and localized $f$-electrons is taken into account, using dynamical mean-field theory combined…

强关联电子 · 物理学 2016-02-17 Ryu Shinzaki , Joji Nasu , Akihisa Koga

We generalize the momentum average approximation to study the properties of single polarons in models with boson affected hopping, where the fermion-boson scattering depends explicitly on both the fermion's and the boson's momentum. As a…

材料科学 · 物理学 2015-05-20 Mona Berciu , Holger Fehske

The Wentzel-Kramers-Brillouin (WKB) approximation is frequently used to explore the mechanics of the cochlea. As opposed to numerical strategies, the WKB approximation facilitates analysis of model results through interpretable closed-form…

生物物理 · 物理学 2024-01-03 Brian L. Frost

We determine the free energy of strongly correlated electron systems in the example of the Hubbard model by calculating the contribution of spin and charge fluctuations to the Gutzwiller approximation mean field result. We employ the slave…

强关联电子 · 物理学 2025-03-14 David Riegler , Jannis Seufert , Ronny Thomale , Peter Wölfle

We propose a hybrid method combining partial differential equation (PDE) and Monte Carlo (MC) techniques to obtain efficient estimates of statistics for plastic deformation related to kinematic hardening models driven by transient coloured…

统计力学 · 物理学 2025-11-12 Harry L. F. Ip , Charlie Mathey , Laurent Mertz , Jonathan J. Wylie

We present an analytical theory for heteropolymer deformation, as exemplified experimentally by stretching of single protein molecules. Using a mean-field replica theory, we determine phase diagrams for stress-induced unfolding of typical…

统计力学 · 物理学 2009-11-07 Phillip L. Geissler , Eugene I. Shakhnovich

In variational phase-field modeling of brittle fracture, the functional to be minimized is not convex, so that the necessary stationarity conditions of the functional may admit multiple solutions. The solution obtained in an actual…

计算工程、金融与科学 · 计算机科学 2023-07-19 Tymofiy Gerasimov , Ulrich Römer , Jaroslav Vondřejc , Hermann G. Matthies , Laura De Lorenzis