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We consider the Burgers equation posed on the outer communication region of a Schwarzschild black hole spacetime. Assuming spherical symmetry for the fluid flow under consideration, we study the propagation and interaction of shock waves…

偏微分方程分析 · 数学 2017-06-06 Yuri Bakhtin , Philippe G. LeFloch

We prove spatiotemporal algebraically decaying estimates for the density of the solutions of the linearly damped nonlinear Schr\"odinger equation with localized driving, when supplemented with vanishing boundary conditions. Their derivation…

数学物理 · 物理学 2019-12-10 G. Fotopoulos , N. I. Karachalios , V. Koukouloyannis , K. Vetas

We present results for the 1 dimensional stochastically forced Burgers equation when the spatial range of the forcing varies. As the range of forcing moves from small scales to large scales, the system goes from a chaotic, structureless…

混沌动力学 · 物理学 2009-10-31 F. Hayot , C. Jayaprakash

Thermodynamics of small systems has become an important field of statistical physics. They are driven out of equilibrium by a control, and the question is naturally posed how such a control can be optimized. We show that optimization…

统计力学 · 物理学 2011-09-08 Erik Aurell , Carlos Mejia-Monasterio , Paolo Muratore-Ginanneschi

We investigate the coupling between the nonlinear Schr\"odinger equation and the inviscid Burgers equation, a system which models interactions between short and long waves, for instance in fluids. Well-posedness for the associated Cauchy…

偏微分方程分析 · 数学 2012-12-11 Paulo Amorim , Joao-Paulo Dias , Mario Figueira , Philippe G. LeFloch

The Lambert problem originated in orbital mechanics. It concerns with determining the initial velocity for a boundary value problem involving the dynamical constraint due to gravitational potential with additional time horizon and endpoint…

最优化与控制 · 数学 2024-10-04 Alexis M. H. Teter , Iman Nodozi , Abhishek Halder

We use the mapping between Burgers' equation and the problem of a directed polymer in a random medium in order to study the fully developped turbulence in the $N$ dimensional forced Burgers' equation. The stirring force corresponds to a…

凝聚态物理 · 物理学 2009-10-28 J. P. Bouchaud , M. Mezard , G. Parisi

The dynamics of an initially localized Anderson mode is studied in the framework of the nonlinear Schroedinger equation in the presence of disorder. It is shown that the dynamics can be described in the framework of the Liouville operator.…

统计力学 · 物理学 2015-05-14 A. Iomin

We consider the interplay of thermal fluctuations and shear on the surface of the domains in various systems coarsening under an imposed shear flow. These include systems with nonconserved and conserved dynamics, and a conserved order…

统计力学 · 物理学 2009-11-07 Alan J. Bray , Andrea Cavagna , Rui D. M. Travasso

The aim of this paper is to recover displacement interpolations of probability measures, in the sense of the Optimal Transport theory, by semiclassical measures associated with solutions of Schr\"odinger equations defined on the flat torus.…

偏微分方程分析 · 数学 2018-04-18 L. Zanelli

Complex systems may be subject to various uncertainties. A great effort has been concentrated on predicting the dynamics under uncertainty in initial conditions. In the present work, we consider the well-known Burgers equation with random…

经典分析与常微分方程 · 数学 2007-05-23 Dirk Blömker , Jinqiao Duan

We formulate the Schr\"odinger problem for interacting particle systems in the hydrodynamical regime thus extending the standard setting of independent particles. This involves the large deviations rate function for the empirical measure…

概率论 · 数学 2025-06-30 L. Bertini , D. Gabrielli , G. Jona-Lasinio

Although spatial locality is explicit in the Heisenberg picture of quantum dynamics, spatial locality is not explicit in the Schr\"odinger picture equations of motion. The gauge picture is a modification of Schr\"odinger's picture such that…

量子物理 · 物理学 2024-07-30 Sayak Guha Roy , Kevin Slagle

We consider the problem to steer a linear dynamical system with full state observation from an initial gaussian distribution in state-space to a final one with minimum energy control. The system is stochastically driven through the control…

系统与控制 · 计算机科学 2014-08-12 Yongxin Chen , Tryphon Georgiou , Michele Pavon

Schrodinger Bridges (SBs) are diffusion processes that steer, in finite time, a given initial distribution to another final one while minimizing a suitable cost functional. Although various methods for computing SBs have recently been…

机器学习 · 计算机科学 2025-10-15 George Rapakoulias , Ali Reza Pedram , Fengjiao Liu , Lingjiong Zhu , Panagiotis Tsiotras

The linear Schr\"{o}dinger equation does not predict that macroscopic bodies should be located at one place only. Quantum mechanics textbooks generally solve the problem by introducing the projection postulate, which forces definite values…

量子物理 · 物理学 2015-07-01 Franck Laloë

We solve the time-dependent Schr\"odinger equation by learning the score function, the gradient of the log-probability density, on Bohmian trajectories. In Bohm's formulation of quantum mechanics, particles follow deterministic paths under…

量子物理 · 物理学 2026-04-29 Lei Wang

In this article we deal with one-dimensional inverse problems concerning the Burgers equation and some related nonlinear systems (involving heat effects and/or variable density). In these problems, the goal is to find the size of the…

偏微分方程分析 · 数学 2022-01-05 J. Apraiz , A. Doubova , E. Fernández-Cara , M. Yamamoto

We take a new look at the relation between the optimal transport problem and the Schr\"{o}dinger bridge problem from the stochastic control perspective. We show that the connections are richer and deeper than described in existing…

系统与控制 · 计算机科学 2014-12-16 Yongxin Chen , Tryphon Georgiou , Michele Pavon

The dynamic Schr\"odinger bridge problem provides an appealing setting for solving constrained time-series data generation tasks posed as optimal transport problems. It consists of learning non-linear diffusion processes using efficient…

机器学习 · 计算机科学 2023-11-27 Ella Tamir , Martin Trapp , Arno Solin