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We study a directed flipping process that underlies the performance of the random edge simplex algorithm. In this stochastic process, which takes place on a one-dimensional lattice whose sites may be either occupied or vacant, occupied…

Statistical Mechanics · Physics 2008-10-16 T. Antal , D. ben-Avraham , E. Ben-Naim , P. L. Krapivsky

MHD turbulence has long been proposed as a mechanism for the heating of coronal loops in the framework of the Parker scenario for coronal heating. So far most of the studies have focused on its dynamical properties without considering its…

Solar and Stellar Astrophysics · Physics 2014-11-20 R. B. Dahlburg , A. F. Rappazzo , M. Velli

Inspired by its central role in many biological processes, the transport of biopolymers across nanoscale pores is at the heart of a single-molecule sensing technology aimed at nucleic acid and protein sequencing, as well as biomarker…

Biological Physics · Physics 2025-10-16 Martin Charron , Breeana Elliott , Nada Kerrouri , Liqun He , Vincent Tabard-Cossa

Collective cell flows are a hallmark of tissue dynamics in development, wound healing, and various diseases. Here, we perform experiments on epithelial MDCK cell monolayers, over tens of hours without jamming, on millimeter-scale…

Tissues and Organs · Quantitative Biology 2025-11-27 Guillaume Duprez , Mélina Durande , François Graner , Hélène Delanoë-Ayari

We examine the effects of confinement on the dynamics of premelted films driven by thermomolecular pressure gradients. Our approach is to modify a well-studied setting in which the thermomolecular pressure gradient is driven by a…

Fluid Dynamics · Physics 2017-11-22 Satyajit Pramanik , John S. Wettlaufer

Aims. We investigate the synthetic observational signatures from numerical models of coronal heating in an arcade to determine what features are associated with such heating, and what tools can be used to identify them. Methods. We consider…

Solar and Stellar Astrophysics · Physics 2021-12-11 Lianne Fyfe , Thomas Howson , Ineke De Moortel

We investigate the dynamics of a particle moving randomly along a disordered hetero-polymer subjected to rapid conformational changes which induce superdiffusive motion in chemical coordinates. We study the antagonistic interplay between…

Statistical Mechanics · Physics 2009-11-10 D. Brockmann , T. Geisel

Thin flame dynamics in a turbulent flow remains debated, with various parameterizations proposed for the typical flame propagation velocity. According to the classical Damk\"ohler's model based on Huygens' principle, a flame front should…

Fluid Dynamics · Physics 2026-03-09 Nihal Tawdi , Christophe Almarcha , Michael Le Bars

In the present paper we overview our recent results on intrinsic frictional properties of adsorbed monolayers, composed of mobile hard-core particles undergoing continuous exchanges with a vapor phase. Within the framework of a dynamical…

Soft Condensed Matter · Physics 2009-11-07 O. Benichou , A. M. Cazabat , J. De Coninck , M. Moreau , G. Oshanin

Thermal conduction in polymer nanocomposites depends on several parameters including the thermal conductivity and geometrical features of the nanoparticles, the particle loading, their degree of dispersion and formation of a percolating…

Applied Physics · Physics 2021-01-25 Alessandro di Pierro , Alberto Fina

Proton energization at magnetic discontinuities generated by phase-steepened fronts of parallel propagating, large-amplitude Alfv\'enic fluctuation is studied using hybrid simulations. We find that dispersive effects yield to the collapse…

Plasma Physics · Physics 2021-04-07 C. A. González , A. Tenerani , L. Matteini , P. Hellinger , M. Velli

The energy released in a magnetic material by reversing spins as they relax toward equilibrium can lead to a dynamical instability that ignites self-sustained rapid relaxation along a deflagration front that propagates at a constant…

Mesoscale and Nanoscale Physics · Physics 2013-05-22 P. Subedi , S. Vélez , F. Macià , S. Li , M. P. Sarachik , J. Tejada , S. Mukherjee , G. Christou , A. D. Kent

The exciton relaxation dynamics of photoexcited electronic states in poly($p$-phenylenevinylene) (PPV) are theoretically investigated within a coarse-grained model, in which both the exciton and nuclear degrees of freedom are treated…

Chemical Physics · Physics 2018-02-14 Jonathan R. Mannouch , William Barford , Sarah Al-Assam

Periodically driven Floquet quantum systems provide a promising platform to investigate novel physics out of equilibrium. Unfortunately, the drive generically heats up the system to a featureless infinite temperature state. For large…

Quantum Physics · Physics 2021-03-02 Pai Peng , Chao Yin , Xiaoyang Huang , Chandrasekhar Ramanathan , Paola Cappellaro

In the present article, series of opposed flow, downward flame spread experiments are conducted using 80 mm long cast PMMA cylinders of 1 mm and 0.5 mm diameters at normal and micro gravity environments. All the experiments are conducted at…

Fluid Dynamics · Physics 2025-02-28 Manu B , Amit Kumar

Self-assembly of polypeptides into fibrillar structures can be initiated by planar surfaces that interact favorably with certain residues. Using a coarse grained model, we systematically studied the folding and adsorption behavior of a…

Soft Condensed Matter · Physics 2017-10-12 Ran Ni , J. Mieke Kleijn , Sanne Abeln , Martien A. Cohen Stuart , Peter G. Bolhuis

Bonding between polymeric interfaces is encountered widely in several industrial applications. Many of these bonding processes rely on time-consuming and temperature-dependent classical mechanism of polymer interdiffusion via reptation in a…

Soft Condensed Matter · Physics 2022-05-10 Nikhil Padhye , Ajay Vallabh

Since it is difficult to apply the existing method of friction and heat flux decomposition on the complex surface, a combined decomposition method of friction and heat flux with clear physical interpretation is proposed, which is based on…

Fluid Dynamics · Physics 2023-03-16 Mingzhi Tang , Wenfeng Zhou , Yanchao Hu , Gang Wang , Ming Fang , Yan-guang Yang

We consider a coupled reaction-advection-diffusion system based on the Fisher-KPP and Burgers equations. These equations serve as a one-dimensional version of a model for a reacting fluid in which the arising density differences induce a…

Analysis of PDEs · Mathematics 2021-05-28 Jason J. Bramburger , Christopher Henderson

We consider the scenario of a magnetic field orthogonal to a front separating two media of different temperatures and densities, such as cold and warm interstellar gas, in a 2-D plane-parallel geometry. A linear stability analysis is…

Astrophysics of Galaxies · Physics 2011-02-11 Jennifer M. Stone , Ellen G. Zweibel