Results 1 to 10 of about 18,903 (124)

ANALYTICAL MECHANICS IN STOCHASTIC DYNAMICS: MOST PROBABLE PATH, LARGE-DEVIATION RATE FUNCTION AND HAMILTON–JACOBI EQUATION [PDF]

open access: yesInternational Journal of Modern Physics B, 2012
Analytical (rational) mechanics is the mathematical structure of Newtonian deterministic dynamics developed by D'Alembert, Lagrange, Hamilton, Jacobi, and many other luminaries of applied mathematics. Diffusion as a stochastic process of an overdamped individual particle immersed in a fluid, initiated by Einstein, Smoluchowski, Langevin and Wiener ...
Ge, Hao, Qian, Hong
openaire   +3 more sources

The World as a Neural Network [PDF]

open access: yesEntropy, 2020
We discuss a possibility that the entire universe on its most fundamental level is a neural network. We identify two different types of dynamical degrees of freedom: “trainable” variables (e.g., bias vector or weight matrix) and “hidden” variables (e.g.,
Vitaly Vanchurin
doaj   +2 more sources

Mechanics of infinitesimal gyroscopes on helicoid-catenoid deformation family of minimal surfaces [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2021
In this paper we explore the mechanics of infinitesimal gyroscopes (test bodies with internal degrees of freedom) moving on an arbitrary member of the helicoid-catenoid family of minimal surfaces.
Vasyl Kovalchuk   +2 more
doaj   +1 more source

Diffusion Effect in Quantum Hydrodynamics

open access: yesAxioms, 2022
In this paper, we introduce (at least formally) a diffusion effect that is based on an axiom postulated by Werner Heisenberg in the early days of quantum mechanics.
Moise Bonilla-Licea   +2 more
doaj   +1 more source

Bohm's potential, classical/quantum duality and repulsive gravity

open access: yesPhysics Letters B, 2019
We propose the notion of a classical/quantum duality in the gravitational case (it can be extended to other interactions). By this one means exchanging Bohm's quantum potential for the classical potential VQ↔V in the stationary quantum Hamilton–Jacobi ...
Carlos Castro Perelman
doaj   +1 more source

Representation Formula for Solutions of Eikonal Type Equations

open access: yesNonlinear Analysis, 2001
Equations of an eikonal type ones arise in many areas of applications, including optics, fluid mechanics, material sciences, and control theory. This article investigates the representation formula for semiconcave solutions of the boundary problem for ...
Gintautas Gudynas
doaj   +1 more source

Gauge Invariance of Nonlinear Klein-Gordon

open access: yesPositron, 2013
We have discussed the gauge invariance of nonlinear Klein-Gordon equation which describes the interaction of electromagnetic initially proposed by Hermann Weyl. The construction of nonlinear Klein-Gordon itself is formulated by two classical conservation
T. B. Prayitno
doaj   +1 more source

Derivation of the Schrödinger equation from the Hamilton–Jacobi equation in Feynman's path integral formulation of quantum mechanics [PDF]

open access: yesEuropean Journal of Physics, 2010
It is shown how the time-dependent Schr dinger equation may be simply derived from the dynamical postulate of Feynman's path integral formulation of quantum mechanics and the Hamilton-Jacobi equation of classical mechanics. Schr dinger's own published derivations of quantum wave equations, the first of which was also based on the Hamilton-Jacobi ...
openaire   +1 more source

Covariant GUP Deformed Hamilton-Jacobi Method

open access: yesAdvances in High Energy Physics, 2017
We first briefly revisit the original Hamilton-Jacobi method and show that the Hamilton-Jacobi equation for the action I of tunneling of a fermionic particle from a charged black hole can be written in the same form of that for a scalar particle.
Benrong Mu, Peng Wang, Haitang Yang
doaj   +1 more source

On Exact Multidimensional Solutions of a Nonlinear System of First Order Partial Differential Equations

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2019
This study is concerned with a system of two nonlinear first order partial differential equations. The right-hand sides of the system contain the squares of the gradients of the unknown functions.
A.A. Kosov   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy