Abstract

We investigate the effective Dirac equation, corrected by merging two scenarios that are expected to emerge towards the quantum gravity scale. Namely, the existence of a minimal length, implemented by the generalized uncertainty principle, and exotic spinors, associated with any non-trivial topology equipping the spacetime manifold. We show that the free fermionic dynamical equations, within the context of a minimal length, just allow for trivial solutions, a feature that is not shared by dynamical equations for exotic spinors. In fact, in this coalescing setup, the exoticity is shown to prevent the Dirac operator to be injective, allowing the existence of non-trivial solutions.

Details

Title
Exotic fermionic fields and minimal length
Author
da Silva J M Hoff 1 ; Beghetto, D 2 ; Cavalcanti, R T 1 ; da Rocha R 3 

 Universidade Estadual Paulista, UNESP, Departamento de Física, Guaratinguetá, Brazil (GRID:grid.410543.7) (ISNI:0000 0001 2188 478X) 
 Universidade Estadual Paulista, UNESP, Departamento de Física, Guaratinguetá, Brazil (GRID:grid.410543.7) (ISNI:0000 0001 2188 478X); Instituto Federal de Educação, Ciência e Tecnologia do Norte de Minas Gerais, IFNMG, Pirapora, Brazil (GRID:grid.410543.7) 
 Federal University of ABC, CMCC, Santo André, Brazil (GRID:grid.412368.a) (ISNI:0000 0004 0643 8839) 
Publication year
2020
Publication date
Aug 2020
Publisher
Springer Nature B.V.
ISSN
14346044
e-ISSN
14346052
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2433033049
Copyright
© The Author(s) 2020. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.