Exact results in stochastic processes with division, death, and diffusion: Spatial correlations, marginal entropy production, and macroscopic currents [0.03%]
分裂、死亡和扩散随机过程中的精确结果：空间相关性、边缘熵产生和宏观电流
Samuel Cameron,Elsen Tjhung
Samuel Cameron
We consider a generic class of stochastic particle-based models whose state at an instant in time is described by a set of continuous degrees of freedom (e.g., positions), and the length of this set changes stochastically in time due to bir...
Loading-dependent microscale measures control bulk properties in granular material: An experimental test of the stress-force-fabric relation [0.03%]
基于应力-力-结构关系的颗粒材料宏观属性的微细观表征与预测实验研究
Carmen L Lee,Ephraim Bililign,Emilien Azéma et al.
Carmen L Lee et al.
The bulk behavior of granular materials is tied to its mesoscale and particle-scale features: Strength properties arise from the buildup of various anisotropic structures at the particle-scale induced by grain connectivity, force transmissi...
Spectral coarse graining and rescaling for preserving structural and dynamical properties in graphs [0.03%]
图的谱粗粒化和重标度以保持其结构及动力学性质
M Schmidt,F Caccioli,T Aste
M Schmidt
We introduce a graph renormalization procedure based on the coarse-grained Laplacian, which generates reduced-complexity representations across scales. This method retains both dynamics and large-scale topological structures, while reducing...
Alexander K Hartmann,Satya N Majumdar
Alexander K Hartmann
We provide an exact formula for the mean first-passage time (MFPT) to a target at the origin for a single particle diffusing on a d-dimensional hypercubic lattice starting from a fixed initial position R[over ⃗]_{0} and resetting to R[over...
O Coquand,W T Kranz,M Sperl
O Coquand
We adapt statistical models of the physics of complex fluids to study the rheology of granular liquids. This allows us to provide laws of granular rheology based on first principles, which compare well with previously established phenomenol...
Nonlinear screening of ions in plasmas: A general phase-shift sum rule [0.03%]
等离子体中离子的非线性屏蔽：通用相移求和规则
N R Arista
N R Arista
A very basic aspect in the interaction of ions with plasmas is the effect of screening of the ion charge. In the case of classical plasmas this effect is usually described by linear theories. However, for dense quantum plasmas, deviations f...
General approach to the statistics of microbial orientation: Lévy walks, noise, and deterministic drift [0.03%]
微生物取向统计的一般方法：莱维行走、噪声和确定性漂移
Taylor J Whitney,Thomas H Solomon,Kevin A Mitchell
Taylor J Whitney
Microbial motion is typically analyzed by simplified models in which trajectories exhibit straight runs (perhaps with added Gaussian noise) followed by random, discrete tumbling events. We present the results of a statistical analysis of th...
Bifurcation analysis of a birhythmic vibroimpact oscillator with two kinds of fractional derivative elements subjected to Gaussian white noise excitation [0.03%]
含两种分数阶阻尼的双节律振动碰摩系统的分岔分析及随机共振研究
Boris A Guimfack,Raoul Mbakob Yonkeu,Timoléon C Kofané et al.
Boris A Guimfack et al.
This paper explores the stochastic bifurcations of a birhythmic vibroimpact oscillator incorporating two types of fractional derivative elements under Gaussian white noise excitation. The analysis begins with a nonsmooth coordinate transfor...
Collectively handled spheres self-organize: How friction and dynamics limit the jamming phase diagram [0.03%]
集体处理的球体自发组织：摩擦和动力学如何限制堵塞相图
K P Krishnaraj
K P Krishnaraj
We show that the network of interparticle contacts in collectively handled jammed frictional and polydisperse sphere assemblies exhibits protocol-dependent self-organization. Here, by collective handling, we refer to boundary-controlled sph...
Impact of cross and main diffusion coefficients on symmetry breaking in nonreactive diffusion systems [0.03%]
扩散系数对非反应扩散系统破缺的影响研究
Berin Šeta,Jon Spangenberg,Mounir M Bou-Ali et al.
Berin Šeta et al.
Diffusion-triggered convection can occur in a gravitationally stable system of two superimposed mixtures. As instability develops, two distinct patterns may emerge: double-diffusive (DD) or diffusion-layer convection (DLC). Traditionally, n...