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Completeness Theorems for Impulsive Dirac Operator with Discontinuity

open access: yesAxioms
In this work, the discontinuous Dirac operator with weight is studied. We prove the completeness theorems of the system of eigenfunctions for the discontinuous Dirac operator.
Kai Wang   +3 more
doaj   +2 more sources

Results on the number of zero modes of the Weyl-Dirac operator [PDF]

open access: yes, 2009
For a given magnetic potential A one can define the Weyl-Dirac operator σ·(−i∇−A) on R 3 . An L 2 eigenfunction of σ · (−i∇ − A) corresponding to 0 is called a zero mode.
Ta, Tri
core   +4 more sources

Covariantization of quantized calculi over quantum groups [PDF]

open access: yesMathematica Bohemica, 2020
We introduce a method for construction of a covariant differential calculus over a Hopf algebra $A$ from a quantized calculus $da=[D,a]$, $a\in A$, where $D$ is a candidate for a Dirac operator for $A$.
Seyed Ebrahim Akrami, Shervin Farzi
doaj   +1 more source

Eigenvalue counting estimates for a class of linear spectral pencils with applications to zero modes [PDF]

open access: yes, 2012
Consider a linear spectral pencil of the form P(−i∇)− zQ(x), z ∈ C. If P−1 ∈ weak-Lp and Q ∈ Lp for some 1 < p
Elton, Daniel, Ta, Tri Ngoc
core   +4 more sources

An alternative derivation of the Dirac operator generating intrinsic Lagrangian local gauge invariance [PDF]

open access: yesPapers in Physics, 2017
This paper introduces an alternative formalism for deriving the Dirac operator and equation. The use of this formalism concomitantly generates a separate operator coupled to the Dirac operator.
Brian Jonathan Wolk
doaj   +1 more source

The Dirac Sea, T and C Symmetry Breaking, and the Spinor Vacuum of the Universe

open access: yesUniverse, 2021
We have developed a quantum field theory of spinors based on the algebra of canonical anticommutation relations (CAR algebra) of Grassmann densities in the momentum space. We have proven the existence of two spinor vacua.
Vadim Monakhov
doaj   +1 more source

Effective gravitational action for 2D massive Majorana fermions on arbitrary genus Riemann surfaces

open access: yesJournal of High Energy Physics, 2023
We explore the effective gravitational action for two-dimensional massive Euclidean Majorana fermions in a small mass expansion, continuing and completing the study initiated in a previous paper [1]. We perform a detailed analysis of local zeta functions,
Manojna Namuduri, Adel Bilal
doaj   +1 more source

Topological index theorem on the lattice through the spectral flow of staggered fermions

open access: yesPhysics Letters B, 2015
We investigate numerically the spectral flow introduced by Adams for the staggered Dirac operator on realistic (quenched) gauge configurations. We obtain clear numerical evidence that the definition works as expected: there is a clear separation between ...
V. Azcoiti   +3 more
doaj   +1 more source

Dirac operator spectrum on a nilmanifold

open access: yesNuclear Physics B, 2022
We obtain the spectrum of the Dirac operator on the three-dimensional Heisenberg nilmanifold M3, and its complete dependence on the metric moduli.
Aldo Deandrea   +2 more
doaj   +1 more source

Unitary Howe dualities in fermionic and bosonic algebras and related Dirac operators

open access: yesSciPost Physics Proceedings, 2023
In this paper we use the canonical complex structure $\mathbb{J}$ on $\mathbb{R}^{2n}$ to introduce a twist of the symplectic Dirac operator. This can be interpreted as the bosonic analogue of the Dirac operators on a Hermitian manifold.
Guner Muarem
doaj   +1 more source

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