Statistical mechanics of a two-dimensional quasistatic granular pile: Thermodynamics and constitutive relations [0.03%]
二维准静态颗粒堆的统计力学：热力学和本构关系
R Krechetnikov,A Zelnikov
R Krechetnikov
From the onset of the subject, granular media have been defying the toolkit of statistical mechanics, thus hindering our understanding of their thermodynamic and stress-strain constitutive properties and making this state of matter one of t...
Yielding in colloidal gels: From local structure to mesoscale strand breakage and macroscopic failure [0.03%]
胶体凝胶的屈服：从局部结构到介观尺度的链断裂和宏观失效
Himangsu Bhaumik,Tanniemola B Liverpool,C Patrick Royall et al.
Himangsu Bhaumik et al.
We report numerical simulations of creep flow and yielding of particulate depletion gels under constant shear stress, combining data on different length and time scales. We characterize the statistics of mesoscale strand-breaking events in ...
Critical exponents for isotropically directed percolation on hierarchical lattices [0.03%]
分形格子上的各向同性导向渗流的临界指数
Samuel Dos S Costa,Aurelio W T de Noronha,André P Vieira et al.
Samuel Dos S Costa et al.
We use renormalization-group and Monte Carlo calculations to investigate isotropically directed percolation on hierarchical lattices. We describe a general renormalization-group approach to exactly determine the critical exponents for these...
Stochastic heat differences between many-particle and density-field descriptions [0.03%]
多粒子与密度场描述之间的随机热差
Takuya Saito,Yutaka Sumino
Takuya Saito
This article investigates spatiotemporally discrete or continuous stochastic descriptions, where we focus on differences in heat naturally defined between the particle level and the density field. Both descriptions are found to generally ma...
James P Gleeson,Ailbhe Cassidy,Daniel Giles et al.
James P Gleeson et al.
An algorithm for efficiently calculating the expected size of single-seed cascade dynamics on networks is proposed and tested. The expected cascade size is a time-dependent quantity and so enables the identification of nodes that are the mo...
Arpita Goswami,Ravi Kumar,Monikana Gope et al.
Arpita Goswami et al.
The q-state clock model, sometimes called the discrete XY model, is known to show a second-order (symmetry-breaking) phase transition in two dimensions for q≤4 (q=2 corresponds to the Ising model). On the other hand, the q→∞ limit of the...
Juan Rodrigo,Ian Vega
Juan Rodrigo
We review a conjecture by Ruppeiner that relates the nature of interparticle interactions to the sign of the thermodynamic curvature scalar R, paying special attention to the case of zero curvature. We highlight the underappreciated fact th...
Ilia Yu Kalashnikov,Valery M Chechetkin
Ilia Yu Kalashnikov
This study investigates self-gravity-induced viscosity in collisionless systems in the presence of a massive central body. Employing a kinetic framework based on the Vlasov-Poisson equations, we derive an analytical expression for viscosity...
Role of concentration-polarization electroosmosis in the dielectrophoresis of highly charged colloids: A theoretical study [0.03%]
高带电胶体介电泳中浓度极化电渗作用的理论研究
Jose Eladio Flores-Mena,Raúl Fernández-Mateo,Pablo García-Sánchez et al.
Jose Eladio Flores-Mena et al.
We analyze, both analytically and numerically, the electrokinetic behavior of highly charged dielectric microparticles suspended in aqueous electrolytes. Specifically, we consider small particles subjected to nonuniform AC electric fields a...
Zirui Peng,Sheng Fang,Hao Hu et al.
Zirui Peng et al.
Universality is a fundamental concept in modern physics. For the q-state Potts model, the critical exponents are merely determined by the order-parameter symmetry S_{q}, spatial dimensionality and interaction range, independent of microscop...