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Geometrical formulation of classical mechanics with forces that are not necessarily potential-generated is presented. It is shown that a natural geometrical "playground" for a mechanical system of point particles lacking Lagrangian and/or…

高能物理 - 理论 · 物理学 2010-01-26 Denis Kochan

We consider classical theories described by Hamiltonians $H(p,q)$ that have a non-degenerate minimum at the point where generalized momenta $p$ and generalized coordinates $q$ vanish. We assume that the sum of squares of generalized momenta…

量子物理 · 物理学 2025-04-21 Albert Schwarz

Novel gauge functions are introduced to non-relativistic classical mechanics and used to define forces. The obtained results show that the gauge functions directly affect the energy function and that they allow converting an undriven…

数学物理 · 物理学 2020-09-10 Z. E. Musielak , L. C. Vestal , B. D. Tran , T. B. Watson

In this paper we make a detailed analysis of conservation principles in the context of a family of fourth-order gravitational theories generated via a quadratic Lagrangian. In particular, we focus on the associated notion of energy and…

微分几何 · 数学 2024-05-20 Rodrigo Avalos , Jorge H. Lira , Nicolas Marque

A tradition handed down among physicists maintains that classical physics is a perfectly deterministic theory capable of predicting the future with absolute certainty, independently of any interpretations. It also tells that it was quantum…

物理学史与哲学 · 物理学 2023-03-09 Flavio Del Santo

In a fundamental formulation of the quantum mechanics of a closed system such as the universe as a whole, three forms of information are needed to make predictions for the probabilities of alternative time histories of the closed system .…

广义相对论与量子宇宙学 · 物理学 2021-03-16 James B. Hartle

We study the motion of a particle in a particular magnetic field configuration both classically and quantum mechanically. For flux-free radially symmetric magnetic fields defined on circular regions, we establish that particle escape speeds…

量子物理 · 物理学 2016-04-20 J. Franklin , K. Cole Newton

Mechanics can be founded on a principle relating the uncertainty delta-q in the trajectory of an observable particle to its motion relative to the observer. From this principle, p.delta-q=const., p being the q-conjugated momentum,…

量子物理 · 物理学 2007-11-02 Adrian Faigon

Familiar formulations of classical and quantum mechanics are shown to follow from a general theory of mechanics based on pure states with an intrinsic probability structure. This theory is developed to the stage where theorems from quantum…

量子物理 · 物理学 2018-06-26 Peter Taylor

Extremal principles can generally be divided into two rather distinct classes. There are, on the one hand side, formulations based on the Lagrangian or Hamiltonian mechanics, respectively, dealing with time dependent problems, but…

计算工程、金融与科学 · 计算机科学 2023-11-08 Klaus Hackl , Jiří Svoboda , Franz Dieter Fischer

In this work we revisit the study of the gravitational interaction in the context of the Special Theory of Relativity. It is found that, as long as the equivalence principle is respected, a relativistic non-linear energy conservation…

广义相对论与量子宇宙学 · 物理学 2015-05-05 Ginés R. Pérez Teruel

In recent years, the non-relativistic quantum dynamics derived from three assumptions; i) probability current conservation, ii) average energy conservation, and iii) an epistemic momentum uncertainty [A. Budiyono and D. Rohrlich,…

量子物理 · 物理学 2022-06-01 M. J. Kazemi , S. Y. Rokni

It is shown that all of the basic properties of the hydrogen atom can be consistently described in terms of classical electrodynamics instead of taking the electron to be a particle; we consider an electrically charged classical wave field,…

综合物理 · 物理学 2017-03-08 Sergey Rashkovskiy

A description of the motion in noninertial reference frames by means of the inclusion of high time derivatives is studied. Incompleteness of the description of physical reality is a problem of any theory, both in quantum mechanics and…

综合物理 · 物理学 2020-01-01 Timur F. Kamalov

Relativity and classical dynamics, as defined so far, form distinct parts of classical physics and are formulated based on independent principles. We propose that the formalism of classical dynamics can be considered as the theoretical…

综合物理 · 物理学 2018-08-10 Mozafar Karamian , Mahdi Atiq , Fatemeh Najdat , Mehdi Golshani

The goal of this contribution is to introduce the Hamiltonian formalism of theoretical mechanics for analysing motion in generic linear and non-linear dynamical systems, including particle accelerators. This framework allows the derivation…

加速器物理 · 物理学 2024-02-27 Yannis Papaphilippou

We propose six principles as the fundamental principles of quantum mechanics: principle of space and time, Galilean principle of relativity, Hamilton's principle, wave principle, probability principle, and principle of indestructibility and…

量子物理 · 物理学 2007-05-23 Eijiro Sakai

Both relativistic mechanics and Newtonian mechanics are based on principles that have ontological implications. We propose a series of formalisms that rigorously define the ontology underlying mechanical theories, in order to clarify and…

物理学史与哲学 · 物理学 2023-08-25 Salvador D. Escobedo

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

The Hamiltonian defines the dynamical properties of the universe. Evidence from particle physics shows that there is a different version of the Hamiltonian for each direction of time. As there is no physical basis for the universe to be…

量子物理 · 物理学 2017-07-14 Joan A. Vaccaro