Results 11 to 20 of about 5,723 (211)

Helmholtz Theorem for Nondifferentiable Hamiltonian Systems in the Framework of Cresson’s Quantum Calculus

open access: yesDiscrete Dynamics in Nature and Society, 2016
We derive the Helmholtz theorem for nondifferentiable Hamiltonian systems in the framework of Cresson’s quantum calculus. Precisely, we give a theorem characterizing nondifferentiable equations, admitting a Hamiltonian formulation.
Frédéric Pierret, Delfim F. M. Torres
doaj   +1 more source

xAct Implementation of the Theory of Cosmological Perturbation in Bianchi I Spacetimes

open access: yesMathematics, 2020
This paper presents a computational algorithm to derive the theory of linear gauge invariant perturbations on anisotropic cosmological spacetimes of the Bianchi I type.
Ivan Agullo   +2 more
doaj   +1 more source

On chiral bosons in 2D and 6D

open access: yesJournal of High Energy Physics, 2022
In the Hamiltonian formulation of chiral 2k-form electrodynamics, the 2k-form potential on the (4k + 1)-space is defined up to the addition of either (i) a closed 2k-form or (ii) an exact 2k-form, depending on the choice of chirality constraint. Case (i)
Luca Mezincescu, Paul K. Townsend
doaj   +1 more source

Koopman–von Neumann approach to quantum simulation of nonlinear classical dynamics

open access: yesPhysical Review Research, 2020
Quantum computers can be used to simulate nonlinear non-Hamiltonian classical dynamics on phase space by using the generalized Koopman–von Neumann formulation of classical mechanics.
Ilon Joseph
doaj   +1 more source

An Overview of the Hamilton–Jacobi Theory: the Classical and Geometrical Approaches and Some Extensions and Applications

open access: yesMathematics, 2021
This work is devoted to review the modern geometric description of the Lagrangian and Hamiltonian formalisms of the Hamilton–Jacobi theory. The relation with the “classical” Hamiltonian approach using canonical transformations is also analyzed ...
Narciso Román-Roy
doaj   +1 more source

Hamiltonian formulation of higher rank symmetric gauge theories

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
Recent discussions of fractons have evolved around higher rank symmetric gauge theories with emphasis on the role of Gauss constraints. This has prompted the present study where a detailed hamiltonian analysis of such theories is presented.
Rabin Banerjee
doaj   +1 more source

A port-Hamiltonian formulation of coupled heat transfer

open access: yesMathematical and Computer Modelling of Dynamical Systems, 2022
Heat transfer and cooling solutions play an important role in the design of gas turbine blades. However, the underlying mathematical coupling structures have not been thoroughly investigated. In this work, the port-Hamiltonian formalism is applied to the
Jens Jäschke   +3 more
doaj   +1 more source

Hamiltonian systems with constraints

open access: yesRevista de Investigación de Física
We study the classical   Hamiltonian   of constraints systems.   We will start by defining  a  Lagrangian function that defines a dynamical system with constraints and then we will derive the corresponding Hamiltonian formulation through a Legendre ...
Mississippi Valenzuela
doaj   +1 more source

Quantum-Walk-Inspired Dynamic Adiabatic Local Search

open access: yesEntropy, 2023
We investigate the irreconcilability issue that arises when translating the search algorithm from the Continuous Time Quantum Walk (CTQW) framework to the Adiabatic Quantum Computing (AQC) framework.
Chen-Fu Chiang, Paul M. Alsing
doaj   +1 more source

Hamiltonian Formulation for Continuous Systems with Second-Order Derivatives: A Study of Podolsky Generalized Electrodynamics

open access: yesAxioms
This paper presents an analysis of the Hamiltonian formulation for continuous systems with second-order derivatives derived from Dirac’s theory. This approach offers a unique perspective on the equations of motion compared to the traditional Euler ...
Yazen M. Alawaideh   +5 more
doaj   +1 more source

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