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The empirical measure flow of a McKean-Vlasov $n$-particle system with common noise is a measure-valued process whose law solves an associated martingale problem. We obtain a stability result for the sequence of martingale problems: all…

概率论 · 数学 2025-09-01 Robert Alexander Crowell

This paper advances the stochastic regularity theory for the Navier-Stokes equations by introducing a variable-intensity noise model within the Sobolev and Besov spaces. Traditional models usually assume constant-intensity noise, but many…

流体动力学 · 物理学 2024-11-08 Rômulo Damasclin Chaves dos Santos

Stochastic dynamics has emerged as one of the key themes ranging from models in applications to theoretical foundations in mathematics. One class of stochastic dynamics problems that has received considerable attention recently are…

偏微分方程分析 · 数学 2021-11-16 Christian Kuehn , James MacLaurin , Giulio Zucal

This work investigates a three-dimensional slow-fast stochastic system with quadratic nonlinearity and additive noise, inspired by fluid dynamics. The deterministic counterpart exhibits a periodic orbit and a slow manifold. We demonstrate…

Coherent small-amplitude unsteadiness of the shock wave and the separation region over a canonical double cone flow, termed in literature as oscillation-type unsteadiness, is experimentally studied at Mach 6. The double cone model is…

流体动力学 · 物理学 2024-11-20 Gaurav Kumar , Vaisakh Sasidharan , Akshaya G. Kumara , Subrahmanyam Duvvuri

We study the effect of noise on the evolution of the growth factor of density perturbations in the context of the LCDM model. Stochasticity is introduced as a Wiener process amplified by an intensity parameter alpha. By comparing the…

宇宙学与河外天体物理 · 物理学 2010-11-23 A. L. B. Ribeiro , A. P. A. Andrade , P. S. Letelier

Diffusion with stochastic transport is investigated here when the random driving process is a very general Gaussian process, including Fractional Brownian motion. The purpose is the comparison with a deterministic PDE, which in certain…

概率论 · 数学 2026-04-20 Franco Flandoli , Francesco Russo

We study the geodesic deviation equation for a quantum particle in a linearized quantum gravitational field. Particle's Heisenberg equations of motion are treated as stochastic equations with a quantum noise. We explore the stochastic…

广义相对论与量子宇宙学 · 物理学 2023-03-02 Z. Haba

This work presents an alternative approach to obtain the quantum field equations in curved spacetime, considering that sufficiently small particles follow stochastic trajectories around geodesic. Our proposal is based on a stochastic…

综合物理 · 物理学 2025-07-02 Eric S. Escobar-Aguilar , Tonatiuh Matos , J. I. Jiménez-Aquino

The Stochastic Loewner equation, introduced by Schramm, gives us a powerful way to study and classify critical random curves and interfaces in two-dimensional statistical mechanics. New kind of stochastic Loewner equation, called fractional…

统计力学 · 物理学 2022-04-20 M. Ghasemi Nezhadhaghighi

We investigate the pathwise well-posedness of stochastic evolution equations perturbed by multiplicative Neumann boundary noise, such as fractional Brownian motion for $H\in(1/3,1/2]$. Combining the controlled rough path approach with the…

概率论 · 数学 2023-10-17 Alexandra Neamtu , Tim Seitz

In a stochastic process, noise often modifies the picture offered by the mean field dynamics. In particular, when there is an absorbing state, the noise erases a stable fixed point of the mean field equation from the stationary…

统计力学 · 物理学 2018-12-19 JaeJun Lee , Julian Lee

This article deals with the approximation of a stochastic partial differential equation (SPDE) via amplitude equations. We consider an SPDE with a cubic nonlinearity perturbed by a general multiplicative noise that preserves the constant…

动力系统 · 数学 2019-10-08 Hongbo Fu , Dirk Blömker

The long time dynamics of large particles trapped in two inhomogeneous turbulent shear flows is studied experimentally. Both flows present a common feature, a shear region that separates two colliding circulations, but with different…

流体动力学 · 物理学 2016-03-02 N Machicoane , M López-Caballero , L Fiabane , J-F Pinton , M Bourgoin , J Burguete , R Volk

We explore the scaling behavior of an unsteady flow that is generated by an oscillating body of finite size in a gas. If the gas is gradually rarefied, the Navier-Stokes equations begin to fail and a kinetic description of the flow becomes…

流体动力学 · 物理学 2017-02-28 Vural Kara , Victor Yakhot , Kamil L. Ekinci

The main purpose of the paper is an essentially probabilistic analysis of relativistic quantum mechanics. It is based on the assumption that whenever probability distributions arise, there exists a stochastic process that is either…

量子物理 · 物理学 2009-10-28 P. Garbaczewski , J. R. Klauder , R. Olkiewicz

We study the development of mean structures in a nonlinear model of large scale ocean dynamics with bottom topography and dissipation, and forced with a noise term. We show that the presence of noise in this nonlinear model leads to…

chao-dyn · 物理学 2015-06-24 Alberto Alvarez , Emilio Hernandez-Garcia , Joaquin Tintore

We give a broad generalisation of the mapping, originally due to Dennis, Kitaev, Landahl and Preskill, from quantum error correcting codes to statistical mechanical models. We show how the mapping can be extended to arbitrary stabiliser or…

量子物理 · 物理学 2021-06-03 Christopher T. Chubb , Steven T. Flammia

We introduce a novel energy method that reinterprets ``curve shortening'' as ``tangent aligning''. This conceptual shift enables the variational study of infinite-length curves evolving by the curve shortening flow, as well as higher order…

偏微分方程分析 · 数学 2026-01-27 Tatsuya Miura , Fabian Rupp

The tuning curve of the cochlea measures how large an input is required to elicit a given output level as a function of the frequency. It is a fundamental object of auditory theory, for it summarizes how to infer what a sound was on the…

生物物理 · 物理学 2013-05-29 Marcelo O. Magnasco