English
Related papers

Related papers: Where are ELKO Spinor Fields in Lounesto Spinor Fi…

200 papers

Linear spinor fields are a generalization of the Dirac field that have transparent cluster decomposability properties needed for classical correspondence of relativistic quantum systems. The algebra of these fields directly incorporate…

High Energy Physics - Theory · Physics 2013-12-03 James Lindesay

For a single fermionic field, an interpretation of the Fierz identities (which establish relations between the bilinear field observables) is given. They appear closely related to the algebraic class (regular or singular) of the spin 2-form…

High Energy Physics - Theory · Physics 2023-07-26 Roberto Dale , Alicia Herrero , Juan Antonio Morales-Lladosa

The classification of emergent spinor fields according to modified bilinear covariants is scrutinized, in spacetimes with nontrivial topology, which induce inequivalent spin structures. Extended Clifford algebras, constructed by equipping…

High Energy Physics - Theory · Physics 2024-05-09 J. M. Hoff da Silva , R. da Rocha

Flagpole and flag-dipole spinors are particular classes of spinor fields that has been recently used in different branches of theoretical physics. In this paper, we study the possibility and consequences of these spinor fields to induce an…

High Energy Physics - Theory · Physics 2017-03-02 Roldao da Rocha , R. T. Cavalcanti

We show that the Einstein-Hilbert, the Einstein-Palatini, and the Holst actions can be derived from the Quadratic Spinor Lagrangian (QSL), when the three classes of Dirac spinor fields, under Lounesto spinor field classification, are…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Roldao da Rocha , J. G. Pereira

The so called Inomata-McKinley spinors are a particular solution of the non-linear Heisenberg equation. In fact, free linear massive (or mass-less) Dirac fields are well known to be represented as a combination of Inomata-McKinley spinors.…

Mathematical Physics · Physics 2017-11-22 D. Beghetto , J. M. Hoff da Silva

This study investigates the localization of spinor fields in braneworld models in six or higher dimensions. We study the relationship between fermions in spacetimes of $2n+2$ and $2n$ dimensions. In conformally flat extra-dimensional…

High Energy Physics - Theory · Physics 2024-05-14 Jun-Jie Wan , Yu-Xiao Liu

It is hard to understand spin-one-half fields without reading Weinberg. This paper is a pedagogical footnote to his formalism with an emphasis on the boost matrix, spinors, and Majorana fields.

High Energy Physics - Theory · Physics 2007-05-23 Peter Cahill , Kevin Cahill

There are Poincare group representations on complex Hilbert spaces, like the Dirac spinor field, or real Hilbert spaces, like the electromagnetic field tensor. The Majorana spinor is an element of a 4 dimensional real vector space. The…

Mathematical Physics · Physics 2014-07-29 Leonardo Pedro

We compute the spinor class field for a genus of orders, in a central simple algebra of higher dimension, that are intersections of two maximal orders. In particular, we compute the number of spinor genera in a genus of such orders, as the…

Number Theory · Mathematics 2013-09-24 Luis Arenas-Carmona

It follows from generalities of quadratic forms that the spinor class of the integral trace of a number field determines the signature and the discriminant of the field. In this paper we define a family of number fields, that contains among…

Number Theory · Mathematics 2019-08-08 Guillermo Mantilla-Soler

We investigate using Clifford algebra methods the theory of algebraic dotted and undotted spinor fields over a Lorentzian spacetime and their realizations as matrix spinor fields, which are the usual dotted and undotted two component spinor…

Mathematical Physics · Physics 2014-11-18 E. Capelas de Oliveira , Waldyr A. Rodrigues

We ask the question whether neutrino physics with momentum space Majorana spinors, the eigenvectors of the particle--antiparticle conjugation operator, C=i\gamma_2 K (with K standing for complex conjugation), is different but physics with…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Kirchbach , C. Compean , L. Noriega

In this paper we show that the statement in Ahluwalia, Lee, and Schritt (2011) that the existence of elko spinor fields implies in an axis of locality is equivocated. The anticommutator {{\Lambda}(x,t),{\Pi}(x,t} is strictly local.

Mathematical Physics · Physics 2013-11-15 Edmundo Capelas de Oliveira , Waldyr Alves Rodrigues

Because spatio-temporal tensors are associated with the Lorentz group, whereas spinors are associated with its covering group SL(2, C), one can associate with every tensor a spinor (but not vice versa). In particular, the (1,0)+(0,1)…

Quantum Physics · Physics 2016-02-26 Zhi-Yong Wang

Coupling spinor fields to the gravitational field, in the setting of general relativity, is standardly done via the introduction of a vierbein field and the (associated minimal) spin connection field. This makes three types of indices…

General Relativity and Quantum Cosmology · Physics 2018-12-03 John Fredsted

In this paper we present two different solutions to the problem of zero mode localization of ELKO spinor. In a recent paper the present authors reopened this problem since the solution presented before did not satisfy the boundary condition…

High Energy Physics - Theory · Physics 2015-04-16 I. C. Jardim , G. Alencar , R. R. Landim , R. N. Costa Filho

We aspire to fufill Majorana's original goal of bringing full symmetry between the charged and fundamentally neutral particles. We present a description of fundamentally neutral particles without any reliance on Dirac spinors. We show that…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. V. Ahluwalia-Khalilova

In this paper we consider the most general least-order derivative theory of gravity in which not only curvature but also torsion is explicitly present in the Lagrangian, and where all independent fields have their own coupling constant: we…

General Relativity and Quantum Cosmology · Physics 2013-04-25 Luca Fabbri , Stefano Vignolo

Exotic dark spinor fields are introduced and investigated in the context of inequivalent spin structures on arbitrary curved spacetimes, which induces an additional term on the associated Dirac operator, related to a Cech cohomology class.…

High Energy Physics - Theory · Physics 2011-05-13 Roldao da Rocha , Alex E. Bernardini , J. M. Hoff da Silva