scholarly journals Comment on “Localization of 5D Elko Spinors on Minkowski Branes”

2015 ◽  
Vol 91 (4) ◽  
Author(s):  
I. C. Jardim ◽  
G. Alencar ◽  
R. R. Landim ◽  
R. N. Costa Filho
Keyword(s):  
Elko Spinors

scholarly journals An Alternative Approach Concerning Elko Spinors and the Hidden Unitarity

2019 ◽  
Vol 29 (4) ◽  
Author(s):  
L. C. Duarte ◽  
R. de C. Lima ◽  
R. J. Bueno Rogerio ◽  
C. H. Coronado Villalobos
Keyword(s):  
Alternative Approach ◽  
Elko Spinors

scholarly journals Localization of five-dimensional Elko spinors with non-minimal coupling on thick branes

2018 ◽  
Vol 78 (6) ◽  
Author(s):  
Xiang-Nan Zhou ◽  
Yun-Zhi Du ◽  
Zhen-Hua Zhao ◽  
Yu-Xiao Liu
Keyword(s):  
Minimal Coupling ◽  
Elko Spinors ◽  
Thick Branes

scholarly journals Localization of five-dimensional Elko Spinors on dS/AdS Thick Branes

2021 ◽  
Author(s):  
Xiang-Nan Zhou ◽  
Yun-Zhi Du ◽  
Zhen-Hua Zhao
Keyword(s):  
Elko Spinors ◽  
Thick Branes

scholarly journals Localization of 5D Elko spinors on Minkowski branes

2012 ◽  
Vol 86 (6) ◽  
Author(s):  
Yu-Xiao Liu ◽  
Xiang-Nan Zhou ◽  
Ke Yang ◽  
Feng-Wei Chen
Keyword(s):  
Elko Spinors

Transformation properties and symmetry behaviour of ELKO spinors

2009 ◽  
Vol 87 (8) ◽  
pp. 909-916 ◽  
Author(s):  
K. E. Wunderle ◽  
R. Dick
Keyword(s):  
Time Reversal ◽  
Charge Conjugation ◽  
Commutation Relations ◽  
Charge Conjugation Parity ◽  
Elko Spinors ◽  
Dirac Spinors

We review the transformation properties of ELKO spinors (Eigenspinoren des Ladungskonjugationsoperators) under charge conjugation, parity, and time reversal. Our calculations confirm that ELKO spinors are not eigenspinors of the helicity operator and satisfy [Formula: see text] which identifies them as a representation of a nonstandard Wigner class. However, we find that ELKO spinors transform symmetrically under parity instead of the previously assumed asymmetry. Furthermore, we demonstrate that ELKO spinors transform asymmetrically under time reversal, which is opposite to the previously reported symmetric behaviour. These changes affect the (anti)commutation relations that are satisfied by the operators acting on ELKO spinors. We are also able to show that ELKO spinors actually satisfy the same (anti)commutation relations as Dirac spinors, even though they belong to two different representations.

ELKO applications in cosmology

2014 ◽  
Vol 23 (14) ◽  
pp. 1444008 ◽  
Author(s):  
S. H. Pereira ◽  
A. Pinho S. S.
Keyword(s):  
Dark Matter ◽  
Spinor Field ◽  
System Approach ◽  
State Parameter ◽  
Simple Application ◽  
Different Types ◽  
Acceleration Of The Universe ◽  
Interaction Term ◽  
Elko Spinors ◽  
The Universe

A brief review is presented about the ELKO spinor field applied to cosmology, with the main results and limitations of the theory. As a simple application, we have analyzed a model involving the interaction of the ELKO spinor field with dark matter in the universe from a dynamical system approach. When the system is rewritten in terms of the deceleration parameter q and under the assumption that such parameter is nearly constant for some different stages of the evolution, stability points were found for different types of interaction between dark matter and ELKO spinors. Within this new analysis several interesting scenarios are possible, depending on the interaction term. For example, if it is assumed that the equation of the state parameter of the ELKO field is of the phantom type, ωϕ < -1, the current acceleration of the universe can be driven by the decay of dark matter particles into ELKO field. Furthermore, even for ωϕ > 0, the inflationary period can be driven by the decay of the inflaton field (described by the ELKO spinor) into dark matter particles.

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