Role of manifolds in the transport of chaotic trajectories in the standard nontwist map [0.03%]
标准非扭变映射中混沌轨道传输中的流形作用
Michele Mugnaine,Matheus Rolim Sales,Edson Denis Leonel et al.
Michele Mugnaine et al.
A crucial question in transport theory is determining the critical parameter values at which abrupt changes in phase space occur. In nontwist Hamiltonian systems, this transition is associated with the breakup of the shearless curve. Ideall...
Jacob T Willson,Henrik J Heelweg,Adam P Willard
Jacob T Willson
Statistical mechanics reveals that the properties of a macroscopic physical system emerge as an average over an ensemble of statistically independent microscopic subsystems, each occupying a specific microstate. In the study of quantum syst...
Convection patterns in nonequilibrium Kawasaki dynamics at low temperature [0.03%]
低温度下非平衡Kawasaki动力学中的对流模式
Meander Van den Brande,Kyosuke Adachi,François Huveneers
Meander Van den Brande
We study a conservative stochastic lattice gas (Kawasaki dynamics) coupled in the bulk to a heat bath, which leads to standard phase separation at low uniform temperatures. Instead, a macroscopic temperature gradient drives the system into ...
Variational approach to Yukawa fluids. II. Instantaneous elastic moduli and sound velocities [0.03%]
变分法研究约克瓦流体II.瞬时弹性模量和声速
S A Khrapak,A G Khrapak
S A Khrapak
The variational approach based on the Bogoliubov inequality using the fluid of hard spheres as a reference system is implemented to evaluate instantaneous shear, bulk, and longitudinal elastic moduli, as well as related sound velocities of ...
Self-organized model for the flicker noise in interacting two-dimensional electron gas [0.03%]
相互作用二维电子气的闪烁噪声自组织模型
Maryam Pirgholi,Morteza Nattagh Najafi,Vadood Adami
Maryam Pirgholi
We investigate self-organized criticality in a two-dimensional electron gas (2DEG) by introducing a lattice-based model that incorporates electron-electron interactions through the concept of coherence length. Our numerical simulations demo...
Reduced-order model for solute transport in mixed electro-osmotic and pressure-driven flows of viscoelastic fluids in microchannels [0.03%]
微通道中黏弹性流体混合电渗和压力驱动流动中的溶质输运简化模型
Morteza Dejam,Hassan Hassanzadeh
Morteza Dejam
The solute transport due to mixed electro-osmotic and pressure-driven flows of viscoelastic fluids in microchannels is studied here. The Reynolds decomposition technique, in combination with the assumptions underlying the Taylor-Aris theory...
Elementary derivation of the dissipation-coherence bound for stochastic oscillators [0.03%]
随机振子的耗散-相干界的基本推导方法
Artemy Kolchinsky
Artemy Kolchinsky
The dissipation-coherence bound is a conjectured trade-off between entropy production and the quality of stochastic oscillations. We show that this bound can be derived by combining the higher-order "thermodynamic uncertainty relation" with...
Anomalous diffusion and effective shear modulus in a semisolid membrane [0.03%]
半固体膜中的 anomalous 扩散和有效剪切模量
Vikash Pandey,Dhrubaditya Mitra
Vikash Pandey
From the perspective of physical properties, the cell membrane is an exotic two-dimensional material that has a dual nature: it exhibits characteristics of fluids, i.e., lipid molecules show lateral diffusion, while also demonstrating prope...
First-passage times for the space-fractional Fokker-Planck equation [0.03%]
空间分数阶Fokker-Planck方程的首次到达时间
Christopher N Angstmann,Daniel S Han,Bruce I Henry et al.
Christopher N Angstmann et al.
We extend the random walk framework to include compounded steps, providing first-passage time (FPT) properties for a class of superdiffusive processes which are governed by the space-fractional spectral Fokker-Planck equation. This first-pa...
Optimal navigation in two-dimensional flows: Control theory and reinforcement learning [0.03%]
二维流中的最优导航：控制理论与强化学习
Vladimir Parfenyev
Vladimir Parfenyev
Zermelo's navigation problem seeks the trajectory of minimal travel time between two points in a fluid flow. We address this problem for an agent-such as a floating drone or active particle-that is advected by a two-dimensional flow, self-p...