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Covariant Variational Evolution and Jacobi brackets: Fields [PDF]

open access: yesModern Physics Letters A, 2020
The analysis of the covariant brackets on the space of functions on the solutions to a variational problem in the framework of contact geometry initiated in the companion letter[Formula: see text] is extended to the case of the multisymplectic formulation of the free Klein–Gordon theory and of the free Schrödinger equation.
Ciaglia, F.   +4 more
openaire   +3 more sources

Dirac equation of spin particles and tunneling radiation from a Kinnersly black hole

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
In curved space-time, the Hamilton–Jacobi equation is a semi-classical particle equation of motion, which plays an important role in the research of black hole physics.
Guo-Ping Li   +3 more
doaj   +1 more source

Celestial locality and the Jacobi identity

open access: yesJournal of High Energy Physics, 2023
We show the equivalence of several different tests of the Jacobi identity for celestial currents at tree level, in particular finding a simple, practical condition on hard momentum space 4-point amplitudes in any EFT. Along the way we clarify the role of
Adam Ball
doaj   +1 more source

Geometrization of the theory of electromagnetic and spinor fields on the background of the Schwarzschild spacetime

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2022
The geometrical Kosambi–Cartan–Chern approach has been applied to study the systems of differential equations which arise in quantum-mechanical problems of a particle on the background of non-Euclidean geometry.
N. G. Krylova, V. M. Red’kov
doaj   +1 more source

Jacobi sigma models

open access: yesJournal of High Energy Physics, 2021
We introduce a two-dimensional sigma model associated with a Jacobi manifold. The model is a generalisation of a Poisson sigma model providing a topological open string theory.
Francesco Bascone   +2 more
doaj   +1 more source

On Jacobi field splitting theorems

open access: yesDifferential Geometry and its Applications, 2014
Expository ...
Gumaer, Dennis, Wilhelm, Frederick
openaire   +3 more sources

On the structure vector field of a real hypersurface in complex quadric

open access: yesOpen Mathematics, 2018
From the notion of Jacobi type vector fields for a real hypersurface in complex quadric Qm we prove that if the structure vector field is of Jacobi type it is Killing when the real hypersurface is either Hopf or compact.
Dios Pérez Juan de
doaj   +1 more source

Jacobi Stability Analysis of Scalar Field Models with Minimal Coupling to Gravity in a Cosmological Background

open access: yesAdvances in High Energy Physics, 2016
We study the stability of the cosmological scalar field models by using the Jacobi stability analysis, or the Kosambi-Cartan-Chern (KCC) theory. In this approach, we describe the time evolution of the scalar field cosmologies in geometric terms, by ...
Bogdan Dănilă   +4 more
doaj   +1 more source

Quintessence dark energy from strongly-coupled higgs mass gap: local and non-local higher-derivative non-perturbative scenarios

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
We entertain the possibility that dark energy arises from the Higgs field of quintessence type in the non-perturbative regimes. For this purpose we utilize a set of exact solutions of Higgs field theory recently devised, in terms of Jacobi elliptical ...
Marco Frasca   +2 more
doaj   +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

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