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The non-linear dynamics of long-wavelength cosmological fluctuations may be phrased in terms of an effective classical, but stochastic evolution equation. The stochastic noise represents short-wavelength modes that continually redshift into…

高能物理 - 唯象学 · 物理学 2022-02-23 Jens O. Andersen , Magdalena Eriksson , Anders Tranberg

Stochastic line integrals provide a useful tool for quantitatively characterizing irreversibility and detailed balance violation in noise-driven dynamical systems. A particular realization is the stochastic area, recently studied in coupled…

统计力学 · 物理学 2022-09-14 Stephen Teitsworth , John Neu

We construct turbulent black holes in asymptotically AdS_4 spacetime by numerically solving Einstein equations. Both the dual holographic fluid and bulk geometry display signatures of an inverse cascade with the bulk geometry being well…

高能物理 - 理论 · 物理学 2014-04-23 Allan Adams , Paul M. Chesler , Hong Liu

In this paper, we investigate stochastic partial differential equations driven by multi-parameter anisotropic fractional Levy noises, including the stochastic Poisson equation, the linear heat equation, and the quasi-linear heat equation.…

概率论 · 数学 2014-10-07 Xuebin Lu , Wanyang Dai

Stochastic inflation is widely used as a framework to study scalar field perturbations on an inflationary spacetime in a classical manner. In Starobinsky's seminal work and most of the subsequent literature, stochastic inflation is driven…

广义相对论与量子宇宙学 · 物理学 2025-12-22 Zahra Ahmadi , Mahdiyar Noorbala

Inspired by applications, we consider reaction-diffusion equations on $\mathbb{R}$ that are stochastically forced by a small multiplicative noise term that is white in time, coloured in space and invariant under translations. We show how…

偏微分方程分析 · 数学 2020-03-09 Christian Hamster , Hermen Jan Hupkes

We establish explicit integral tests for spatial asymptotic behaviors of fractional stochastic heat equations driven by additive L\'evy white noise. Our results indicate that fractional stochastic heat equations enjoy the so-called additive…

概率论 · 数学 2024-05-21 Yuichi Shiozawa , Jian Wang

In the first part of this paper I give the historical background to my initial interest in stochastic analysis and to the writing of my book Stochastic Differential Equations. The first edition of this book was published by Springer in…

概率论 · 数学 2022-11-01 Bernt Øksendal

We first prove stochastic representation formulae for space-time harmonic mappings defined on manifolds with evolving Riemannian metric. We then apply these formulae to derive Liouville type theorems under appropriate curvature conditions.…

概率论 · 数学 2014-03-27 Hongxin Guo , Robert Philipowski , Anton Thalmaier

Standing acoustic waves have been known to generate Eulerian time-mean 'streaming' flows at least since the seminal investigation of Lord Rayleigh in the 1880s. Nevertheless, a recent body of numerical and experimental evidence has shown…

流体动力学 · 物理学 2024-10-10 Jacques Abdul Massih , Remil Mushthaq , Guillaume Michel , Gregory P. Chini

In this note, we consider the stochastic heat and Schr\"odinger equation, and show that, at time $t$, the onset of the chaos occurs on the scale of $1/t$, and the Fourier spectrum of the solution is asymptotically Gaussian after centering…

概率论 · 数学 2025-02-10 Yu Gu , Tomasz Komorowski

In this paper, we extend Walsh's stochastic integral with respect to a Gaussian noise, white in time and with some homogeneous spatial correlation, in order to be able to integrate some random measure-valued processes. This extension turns…

概率论 · 数学 2007-05-23 David Nualart , Lluis Quer-Sardanyons

A stochastic telegraph equation is defined by adding a random inhomogeneity to the classical (second order linear hyperbolic) telegraph differential equation. The inhomogeneities we consider are proportional to the two-dimensional white…

概率论 · 数学 2019-04-10 Alexei Borodin , Vadim Gorin

In this paper, we obtain the existence and uniqueness of the strong solution to one spatial dimension stochastic wave equation $\frac{\partial^2 u(t,x)}{\partial t^2}=\frac{\partial^2 u(t,x)}{\partial x^2}+\sigma(t,x,u(t,x))\dot{W}(t,x)$…

概率论 · 数学 2021-10-27 Shuhui Liu , Yaozhong Hu , Xiong Wang

We consider the stochastic damped nonlinear wave equation $\partial_t^{2}u+\partial_t u+u-\Delta u +u^{3} = \sqrt{2} {\langle{\nabla}\rangle^{-s}} \xi$ on the two-dimensional torus $\mathbb T^2$, where $\xi$ denotes a space-time white noise…

概率论 · 数学 2024-10-01 Justin Forlano , Leonardo Tolomeo

The Stochastic Burgers equation was introduced in [H. van Beijeren, R. Kutner and H. Spohn, Excess noise for driven diffusive systems, PRL, 1985] as a continuous approximation of the fluctuations of the asymmetric simple exclusion process.…

概率论 · 数学 2024-12-03 Damiano De Gaspari , Levi Haunschmid-Sibitz

The stochastic heat equation on the sphere driven by additive isotropic Wiener noise is approximated by a spectral method in space and forward and backward Euler-Maruyama schemes in time. The spectral approximation is based on a truncation…

数值分析 · 数学 2024-02-05 Annika Lang , Ioanna Motschan-Armen

The paper is concerned with spatial and time regularity of solutions to linear stochastic evolution equation perturbed by L\'evy white noise "obtained by subordination of a Gaussian white noise". Sufficient conditions for spatial continuity…

概率论 · 数学 2015-10-23 Zdzisław Brzeźniak , Jerzy Zabczyk

We present a new stochastic differential equation model for the spontaneous emission noise and carrier noise in semiconductor lasers. The correlations between these two types of noise have often been neglected in recent studies of the…

应用物理 · 物理学 2018-01-24 Austin McDaniel , Alex Mahalov

Correlated stability conjecture (CSC) proposed by Gubser and Mitra [1,2] linked the thermodynamic and classical (in)stabilities of black branes. The classical instabilities, whenever occurring, were conjectured to arise as Gregory-Laflamme…

高能物理 - 理论 · 物理学 2011-03-17 A. Buchel , C. Pagnutti
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