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相关论文: Weakly nonlocal fluid mechanics - the Schrodinger …

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We show that solutions of nonlinear nonlocal Fokker--Planck equations in a bounded domain with no-flux boundary conditions can be approximated by Cauchy problems with increasingly strong confining potentials defined in the whole space. Two…

偏微分方程分析 · 数学 2019-03-12 Luca Alasio , Maria Bruna , José Antonio Carrillo

The second law of thermodynamics states that entropy increases (or does not change) by time in an isolated system. As microscopic physical laws are reversible, the origin of irreversibility is not straightforward. Although the outcome of a…

统计力学 · 物理学 2013-02-19 Balint Szabo

The purpose of this work is to prove existence of a weak solution of the two dimensional incompressible Euler equations on a noncylindrical domain consisting of a smooth, bounded, connected and simply connected domain undergoing a…

偏微分方程分析 · 数学 2007-12-26 Flavia Z. Fernandes , Milton C. Lopes Filho

We derive expressions for the expectation values of the local energy and the local power transferred by an external electrical field to a many-particle system of interacting spinless electrons. In analogy with the definition of the (local)…

量子物理 · 物理学 2016-06-22 Guillermo Albareda , Fabio Lorenzo Traversa , Xavier Oriols

The hydrodynamic limit of the Vlasov-Maxwell-Boltzmann equations is considered for weak solutions. Using relative entropy estimate about an absolute Maxwellian, an incompressible Electron-Magnetohydrodynamics-Fourier limit for solutions of…

偏微分方程分析 · 数学 2011-02-22 Xianpeng Hu , Dehua Wang

We prove that the weakly damped nonlinear Schr\"odinger flow in $L^2(\mathbb{R})$ provides a dynamical system which possesses a global attractor. The proof relies on the continuity of the Schr\"odinger flow for the weak topology in…

偏微分方程分析 · 数学 2009-10-02 Olivier Goubet , Luc Molinet

We study the stochastic motion of a particle subject to spatially varying Lorentz force in the small-mass limit. The limiting procedure yields an additional drift term in the overdamped equation that cannot be obtained by simply setting…

软凝聚态物质 · 物理学 2019-09-04 Hidde Derk Vuijk , Joseph Michael Brader , Abhinav Sharma

We prove some existence (and sometimes also uniqueness) of weak solutions to some stationary equations associated to the complex Schr\''{o}dinger operator under the presence of a singular nonlinear term. Among other new facts, with respect…

偏微分方程分析 · 数学 2024-02-20 Pascal Bégout , Jesús Ildefonso Díaz

In previous papers we have shown how Schrodinger's equation which includes an electromagnetic field interaction can be deduced from a fluid dynamical Lagrangian of a charged potential flow that interacts with an electromagnetic field. The…

量子物理 · 物理学 2023-11-13 Asher Yahalom

In this article, we study the increasing stability property for the determination of the potential in the Schr\"odinger equation from partial data. We shall assume that the inaccessible part of the boundary is flat and homogeneous boundary…

偏微分方程分析 · 数学 2017-11-15 Anupam Pal Choudhury , Horst Heck

We consider a Friedmann-Robertson-Walker universe with a fluid source obeying a non-ideal equation of state with "asymptotic freedom," namely ideal gas behavior (pressure changes directly proportional to density changes) both at low and…

广义相对论与量子宇宙学 · 物理学 2015-06-22 Donato Bini , Andrea Geralico , Daniele Gregoris , Sauro Succi

An exact uncertainty principle, formulated as the assumption that a classical ensemble is subject to random momentum fluctuations of a strength which is determined by and scales inversely with uncertainty in position, leads from the…

量子物理 · 物理学 2009-11-07 Michael J. W. Hall , Marcel Reginatto

The second law of thermodynamics is discussed and reformulated from a quantum information theoretic perspective for open quantum systems using relative entropy. Specifically, the relative entropy of a quantum state with respect to…

量子物理 · 物理学 2020-11-11 Neil Dowling , Stefan Floerchinger , Tobias Haas

The Schrodinger equation is considered with the first order time derivative changed to a Caputo fractional derivative, the time fractional Schrodinger equation. The resulting Hamiltonian is found to be non-Hermitian and non-local in time.…

数学物理 · 物理学 2009-11-10 Mark Naber

We show that a nonlinear Schr\"odinger wave equation can reproduce all the features of linear quantum mechanics. This nonlinear wave equation is obtained by exploring, in a uniform language, the transition from fully classical theory…

We investigate the Calder\'on problem for the fractional Schr\"odinger equation with drift, proving that the unknown drift and potential in a bounded domain can be determined simultaneously and uniquely by an infinite number of exterior…

偏微分方程分析 · 数学 2018-12-19 Mihajlo Cekić , Yi-Hsuan Lin , Angkana Rüland

This paper is concerned with a compressible MHD equations describing the evolution of viscous non-resistive fluids in piecewise regular bounded Lipschitz domains. Under the general inflow-outflow boundary conditions, we prove existence of…

偏微分方程分析 · 数学 2025-01-28 Yang Li , Young-Sam Kwon , Yongzhong Sun

Fluids with shear-rate-dependent viscosity form a special class of non-Newtonian fluids that play a crucial role in continuum dynamics. We consider a compressible barotropic flow of such fluids, governed by a generalized Navier-Stokes…

偏微分方程分析 · 数学 2025-04-29 Pavel Ludvík , Václav Mácha

A new nonlinear Schroedinger equation is obtained explicitly from the fractal Brownian motion of a massive particle with a complex-valued diffusion constant. Real-valued energy (momentum) plane wave and soliton solutions are found in the…

量子物理 · 物理学 2016-09-08 Carlos Castro , Jorge Mahecha , Boris Rodriguez

A formalism of classical mechanics is given for time-dependent many-body states of quantum mechanics, describing both fluid flow and point mass trajectories. The familiar equations of energy, motion, and those of Lagrangian mechanics are…

量子物理 · 物理学 2025-01-31 James P. Finley