Results 41 to 50 of about 2,501 (221)

The dihedral Dunkl-Dirac symmetry algebra with negative Clifford signature

open access: yes, 2022
The Dunkl–Dirac symmetry algebra is an associative subalgebra of the tensor product of a Clifford algebra and the faithful polynomial representation of a rational Cherednik algebra.
Langlois-Rémillard, Alexis
core   +1 more source

Fermions coupled to skyrmions on S**3 [PDF]

open access: yes, 2003
This paper discusses Skyrmions on the 3-sphere coupled to fermions. The resulting Dirac equation commutes with a generalized angular momentum G. For G = 0 the Dirac equation can be solved explicitly for a constant Skyrme configuration and also for a SO(4)
Krusch, Steffen
core   +1 more source

The deformation L∞ algebra of a Dirac-Jacobi structure

open access: yes, 2022
We develop the deformation theory of a Dirac-Jacobi structure within a fixed Courant-Jacobi algebroid. Using the description of split Courant-Jacobi algebroids as degree 2 contact NQ manifolds and Voronov's higher derived brackets, each Dirac-Jacobi ...
Tortorella, AG
core   +1 more source

An exceptional symmetry algebra for the 3D Dirac–Dunkl operator [PDF]

open access: yes, 2020
We initiate the study of an algebra of symmetries for the 3D Dirac–Dunkl operator associated with the Weyl group of the exceptional root system G 2. For this symmetry algebra,we give both an abstract definition and an explicit realisation.
Alexis Langlois-Rémillard   +3 more
core   +1 more source

Fermions, Skyrmions and the 3-sphere [PDF]

open access: yes, 2009
This paper investigates a background charge one Skyrme field chirally coupled to light fermions on the 3-sphere. The Dirac equation for the system commutes with a generalized angular momentum or grand spin.
Stephen W. Goatham   +3 more
core   +1 more source

Comment on `Dirac theory in spacetime algebra' [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2002
In contrast to formulations of the Dirac theory by Hestenes and by the current author, the formulation recently presented by W. P. Joyce [J. Phys. A: Math. Gen. 34 (2001) 1991--2005] is equivalent to the usual Dirac equation only in the case of vanishing mass. For nonzero mass, solutions to Joyce's equation can be solutions either of the Dirac equation
openaire   +2 more sources

Meson spectrum of SU(2) QCD 1+1 with quarks in Large representations

open access: yesJournal of High Energy Physics, 2023
We consider SU(2) quantum chromodynamics in 1 + 1 dimensions with a single quark in the spin J representation of the gauge group and study the theory in the large J limit where the gauge coupling g 2 → 0 and J → ∞ with λ = g 2 J 2 fixed.
Anurag Kaushal   +2 more
doaj   +1 more source

Hopf–Hecke algebras, infinitesimal Cherednik algebras, and Dirac cohomology [PDF]

open access: yesPure and Applied Mathematics Quarterly, 2021
Hopf-Hecke algebras and Barbasch-Sahi algebras were defined by the first named author (2016) in order to provide a general framework for the study of Dirac cohomology. The aim of this paper is to explore new examples of these definitions and to contribute to their classification. Hopf-Hecke algebras are distinguished by an orthogonality condition and a
Flake, Johannes, Sahi, Siddhartha
openaire   +3 more sources

Poincare Algebra of QED with Dirac's Monopoles [PDF]

open access: yesProgress of Theoretical Physics, 1983
Summary: From the text: Recently we formulated a canonical theory of electrodynamics with electric and magnetic point particles [the author, Phys. Lett. B 112, 458--462(1982)]. In that paper [op. cit.] the time-translation generator \(\hat H\) (the Hamiltonian) was constructed from the Lagrangian.
openaire   +2 more sources

Relativistic wave equations with fractional derivatives and pseudodifferential operators

open access: yesJournal of Applied Mathematics, 2002
We study the class of the free relativistic covariant equations generated by the fractional powers of the d′Alembertian operator (□1/n). The equations corresponding to n=1 and 2 (Klein-Gordon and Dirac equations) are local in their nature, but the ...
Petr Závada
doaj   +1 more source

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