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相关论文: Stability of the kinematically coupled \beta-schem…

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We investigate the thermodynamics of simple (non-interacting) transport models beyond the scope of weak coupling. For a single fermionic or bosonic level -- tunnel-coupled to two reservoirs -- exact expressions for the stationary matter and…

统计力学 · 物理学 2015-07-20 Gabriel E. Topp , Tobias Brandes , Gernot Schaller

We examine the dynamics of a compressible active nematic liquid crystal on a frictional substrate. When frictional damping dominates over viscous dissipation, we eliminate flow in favor of active stresses to obtain a minimal dynamical model…

软凝聚态物质 · 物理学 2016-11-07 Pragya Srivastava , Prashant Mishra , M. Cristina Marchetti

We develop and present a unified multi-scale model (involving three scales of spatial organisation) to study the dynamics of rigid aggregating particles suspended in a viscous fluid medium and subject to a steady poiseuille flow. At…

软凝聚态物质 · 物理学 2016-10-10 Sarthok Sircar , Anthony J. Roberts

We theoretically investigate the thermodynamic stability of a normal-state Bose-Fermi mixture, with a tunable Bose-Fermi pairing interaction $-U_{\rm BF}<0$ associated with a hetero-nuclear Feshbach resonance, as well as a weak repulsive…

量子气体 · 物理学 2021-06-30 Koki Manabe , Yoji Ohashi

We demonstrate that discontinuous shear thickening (DST) can occur even in moderately dense, inertial suspensions of hydrodynamically interacting, frictionless soft particles. Using the Lubrication-Friction Discrete Element Method, our…

软凝聚态物质 · 物理学 2025-05-28 Satoshi Takada , Kazuhiro Hara , Hisao Hayakawa

For quantum systems with competing potentials, the conventional perturbation theory often yields an asymptotic series and the subsequent numerical outcome becomes uncertain. To tackle such kind of problems, we develop a general solution…

量子物理 · 物理学 2015-06-05 H. Mineo , Sheng D. Chao

The conservation laws of continuum mechanic written in an Eulerian frame make no difference between fluids and solids except in the expression of the stress tensors, usually with Newton's hypothesis for the fluids and Helmholtz potentials…

计算工程、金融与科学 · 计算机科学 2017-05-12 Olivier Pironneau

Instabilities for boson-fermion mixed condensates of trapped Alkali atoms due to the boson-fermion attractive interaction are studied using a variational method. Three regions are shown for their instabilities according to the boson-fermion…

凝聚态物理 · 物理学 2009-10-31 T. Miyakawa , T. Suzuki , H. Yabu

Active particles driven by colored noise can be approximately mapped onto a system that obeys detailed balance. The effective interactions which can be derived for such a system allow to describe the structure and phase behavior of the…

软凝聚态物质 · 物理学 2017-11-30 René Wittmann , Umberto Marini Bettolo Marconi , Claudio Maggi , Joseph M. Brader

We review the non-relativistic Green's-function approach to the kinetic equations for Fermi liquids far from equilibrium. The emphasis is on the consistent treatment of the off-shell motion between collisions and on the non-instant and…

核理论 · 物理学 2017-03-08 P. Lipavsky , K. Morawetz , V. Spicka

In this work, we present and analyze a fully-mixed finite element scheme for the dynamic poroelasticity problem in the low-frequency regime. We write the problem as a four-field, first-order, hyperbolic system of equations where the…

数值分析 · 数学 2025-12-12 Stefano Bonetti , Michele Botti , Patrick Vega

Gaussian measures $\mu^{\beta,\nu}$ are associated to some stochastic 2D hydrodynamical systems. They are of Gibbsian type and are constructed by means of some invariant quantities of the system depending on some parameter $\beta$ (related…

概率论 · 数学 2011-11-01 Hakima Bessaih , Benedetta Ferrario

In this work, we derive particle schemes, based on micro-macro decomposition, for linear kinetic equations in the diffusion limit. Due to the particle approximation of the micro part, a splitting between the transport and the collision part…

数值分析 · 数学 2017-01-19 Anaïs Crestetto , Nicolas Crouseilles , Mohammed Lemou

In this article we formulate a stable computational nonlocal poromechanics model for dynamic analysis of saturated porous media. As a novelty, the stabilization formulation eliminates zero-energy modes associated with the original…

数值分析 · 数学 2021-03-24 Shashank Menon , Xiaoyu Song

In this study, we consider a linearized compressible flow structure interaction PDE model for which the interaction interface is under the effect of material derivative term. While the linearization takes place around a constant pressure…

偏微分方程分析 · 数学 2021-02-09 Pelin Guven Geredeli

We analyse three time integration schemes for unfitted methods in fluid structure interaction. In Alghorithm 1 we propose a fully discrete monolithic algorithm with P1 P1 stabilized finite elements for the fluid problem; for this alghorithm…

数值分析 · 数学 2021-05-27 Michele Annese

This paper is concerned with the development and analysis of a mathematical model that is motivated by interstitial hydrodynamics and tissue deformation mechanics (poro-elasto-hydrodynamics) within an in-vitro solid tumor. The classical…

偏微分方程分析 · 数学 2024-03-26 M. Alam , A. Muntean , G. P. Raja Sekhar

The system of N particles moving on a circle and interacting via a global repulsive cosine interaction is well known to display spatially inhomogeneous structures of extraordinary stability starting from certain low energy initial…

统计力学 · 物理学 2009-11-07 F. Leyvraz , M. -C. Firpo , S. Ruffo

Irregular structure in planetary rings is often attributed to the intrinsic instabilities of a homogeneous state undergoing Keplerian shear. Previously these have been analysed with simple hydrodynamic models. We instead employ a kinetic…

天体物理学 · 物理学 2009-11-11 Henrik N. Latter , Gordon I. Ogilvie

The thermodynamic consistency of quasiparticle boson system with effective mass $m^*$ and zero chemical potential is studied. We take the quasiparticle gluon plasma model as a toy model. The failure of previous treatments based on…

核理论 · 物理学 2014-11-18 Shaoyu Yin , Ru-Keng Su