Results 31 to 40 of about 16,019 (311)

Nonlinear A-Dirac Equations [PDF]

open access: yesAdvances in Applied Clifford Algebras, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Testing the Dirac Equation [PDF]

open access: yes, 2007
The dynamical equations which are basic for the description of the dynamics of quantum felds in arbitrary space--time geometries, can be derived from the requirements of a unique deterministic evolution of the quantum fields, the superposition principle, a finite propagation speed, and probability conservation.
Lämmerzahl, Claus, Bordé, Christian J.
openaire   +2 more sources

On the Fractional Derivative of Dirac Delta Function and Its Application

open access: yesAdvances in Mathematical Physics, 2020
The Dirac delta function and its integer-order derivative are widely used to solve integer-order differential/integral equation and integer-order system in related fields. On the other hand, the fractional-order system gets more and more attention.
Zaiyong Feng, Linghua Ye, Yi Zhang
doaj   +1 more source

The Dirac equation with a δ-potential [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2000
Summary: An elementary treatment of the Dirac equation in the presence of a three-dimensional spherically symmetric \(\delta(r- r_0)\)-potential is presented. We show how to handle the matching conditions in configuration space, and discuss the occurrence of supercritical effects.
R D Benguria   +3 more
openaire   +4 more sources

Lorentz covariance of optical Dirac equation and spinorial photon field

open access: yesNew Journal of Physics, 2021
In a recent paper (2014 New J. Phys. 16 093008) Barnett discussed the so-called optical Dirac equation and referred to the involved wave function as a spinor. But as he claimed explicitly, he did not really associate that wave function with a true spinor.
Xiao-Lu You, Chun-Fang Li
doaj   +1 more source

Lorentz Invariance Violation and Modified Hawking Fermions Tunneling Radiation

open access: yesAdvances in High Energy Physics, 2016
Recently the modified Dirac equation with Lorentz invariance violation has been proposed, which would be helpful to resolve some issues in quantum gravity theory and high energy physics.
Shu-Zheng Yang   +3 more
doaj   +1 more source

Characterization of the non-homogenous Dirac-harmonic equation

open access: yesJournal of Inequalities and Applications, 2021
We introduce the non-homogeneous Dirac-harmonic equation for differential forms and characterize the basic properties of solutions to this new type of differential equations, including the norm estimates and the convergency of sequences of the solutions.
Guannan Shi, Shusen Ding, Bing Liu
doaj   +1 more source

Construction of Dirac spinors for electron vortex beams in background electromagnetic fields

open access: yesPhysical Review Research, 2021
Exact solutions of the Dirac equation, a system of four partial differential equations, are rare. The vast majority of them are for highly symmetric stationary systems. Moreover, only a handful of solutions for time dependent dynamics exists.
Andre G. Campos   +2 more
doaj   +1 more source

The Dirac equation as a linear tensor equation for one component

open access: yesEuropean Physical Journal C: Particles and Fields
The Dirac equation is one of the most fundamental equations of modern physics. It is a spinor equation, but some tensor equivalents of the equation were proposed previously.
Andrey Akhmeteli
doaj   +1 more source

Fermi-Bose duality of the Dirac equation and extended real Clifford-Dirac algebra

open access: yesCondensed Matter Physics, 2010
We have proved on the basis of the symmetry analysis of the standard Dirac equation with nonzero mass that this equation may describe not only fermions of spin 1/2 but also bosons of spin 1.
I.Yu. Krivsky, V.M. Simulik
doaj   +1 more source

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