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相关论文: ZM theory II: Hamilton's and Lagrange's equations …

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We consider defining time as a function of a cyclical field, an abstraction of a clock. The definition of time corresponds to a novel interpretation of the relationship between space-time coordinates of observers at different locations in…

广义相对论与量子宇宙学 · 物理学 2009-09-29 Yaneer Bar-Yam

We describe a general approach to the correspondence of ZM theory with quantum electrodynamics. As a first step, we show the correspondence of helical clock-field states with plane wave states of the Dirac equation. Specifically, defining…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Yaneer Bar-Yam

In ZM theory the direction of time has a non-zero projection onto space and this projection corresponds to the local velocity relative to the observer. Classical trajectories can be obtained by following the local direction of time. The…

广义相对论与量子宇宙学 · 物理学 2010-05-19 Yaneer Bar-Yam

In this paper we consider a generalized classical mechanics with fractional derivatives. The generalization is based on the time-clock randomization of momenta and coordinates taken from the conventional phase space. The fractional…

经典物理 · 物理学 2011-11-15 Aleksander Stanislavsky

The classical Lagrange formalism is generalized to the case of arbitrary stationary (but not necessarily conservative) dynamical systems. It is shown that the equations of motion for such systems can be derived in the standard ways from the…

经典物理 · 物理学 2022-12-26 Alex Ushveridze

Beginning with the principle that a closed mechanical composite system is timeless, time can be defined by the regular changes in a suitable position coordinate (clock) in the observing part, when one part of the closed composite observes…

量子物理 · 物理学 2021-10-05 John S. Briggs

Using well known Lagrangean techniques for uncovering the gauge symmetries of a Lagrangean, we derive the transformation laws for the phase space variables corresponding to local symmetries of the Hamilton equations of motion. These…

高能物理 - 理论 · 物理学 2015-06-26 Heinz J. Rothe

New, gauge-independent, second-order Lagrangian for the motion of classical, charged test particles is used to derive the corresponding Hamiltonian formulation. For this purpose a Hamiltonian description of the theories derived from the…

经典物理 · 物理学 2009-10-31 D. Chruscinski , J. Kijowski

The classical and quantum dynamics of simple time-reparametrization- invariant models containing two degrees of freedom are studied in detail. Elimination of one ``clock'' variable through the Hamiltonian constraint leads to a description…

广义相对论与量子宇宙学 · 物理学 2009-10-28 Ian D. Lawrie , Richard J. Epp

The Hamiltonian and Lagrangian formalisms of Qunatum Field Theory (QFT) are equivalent. But while Lorentz invariance can be clearly seen in the Lagrangian formalism, it is not so explicit in the Hamiltonian one. This is because time is…

量子物理 · 物理学 2021-08-26 Sivapalan Chelvaniththilan

The problem of the Nature of Time is twofold: whether or not time is a fundamental quantity of Nature, and how does clock time of metrology emerge in the experimental description of dynamics. This work strongly supports the fundamental…

经典物理 · 物理学 2013-11-05 Enrico Prati

We analyze the dynamical equations obeyed by a classical system with position-dependent mass. It is shown that there is a non-conservative force quadratic in the velocity associated to the variable mass. We construct the Lagrangian and the…

数学物理 · 物理学 2013-01-18 Sara Cruz y Cruz , Oscar Rosas-Ortiz

In this article one introduces a formalism of classical mechanics where complex Lagrangian functions are admitted. The results include complex versions of the Lagrangian function, of the Euler-Lagrange equation, of the Hamilton principle, a…

数学物理 · 物理学 2026-02-03 Sergio Giardino

The relationship between the Hamiltonian and Lagrangean functions in analytical mechanics is a type of duality. The two functions, while distinct, are both descriptive functions encoding the behavior of the same dynamical system. One…

综合物理 · 物理学 2023-10-30 John E. Hurtado

Classical field theory is considered as a theory of unparametrized surfaces embedded in a configuration space, which accommodates, in a symmetric way, spacetime positions and field values. Dynamics is defined by a (Hamiltonian) constraint…

数学物理 · 物理学 2016-06-20 Vaclav Zatloukal

This work is devoted to a systematic exposition of the dynamics of a rigid body, considered as a system with kinematic constraints. Having accepted the variational problem in accordance with this, we no longer need any additional postulates…

经典物理 · 物理学 2023-09-06 Alexei A. Deriglazov

We prove that the classical theory with a discrete time (chronon) is a particular case of a more general theory in which spinning particles are associated with generalized Lagrangians containing time-derivatives of any order (a theory that…

量子物理 · 物理学 2015-06-26 Erasmo Recami , Giovanni Salesi

There exist instances of dynamical systems possessing symmetry transformations of which the conserved Noether charges generating these symmetries feature an explicit time dependence in their functional representation over phase space. The…

高能物理 - 理论 · 物理学 2019-07-02 Jan Govaerts

Hamilton's principle of stationary action lies at the foundation of theoretical physics and is applied in many other disciplines from pure mathematics to economics. Despite its utility, Hamilton's principle has a subtle pitfall that often…

广义相对论与量子宇宙学 · 物理学 2015-06-11 Chad R. Galley

This contribution analyses the classical laws of motion by means of an approach relating time and entropy. We argue that adopting the notion of change of states as opposed to the usual derivation of Newton's laws in terms of fields a…

综合物理 · 物理学 2007-06-19 R Assumpcao
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