The Importance of Scalar Fields as Extradimensional Metric Components in Kaluza-Klein Models

Author(s)

Moraes, P. H. R. S. ^{[1, 2]} ; Correa, R. A. C. ^{[1, 3]}

Affiliation

^[1] ITA, BR-12228900 Sao Jose Dos Campos, SP - Brazil

^[2] Univ Napoli Federico II UNINA, I-80126 Naples - Italy

^[3] SISSA, Via Bonomea 265, I-34136 Trieste - Italy

• Document type: Journal article
• Source: ADVANCES IN ASTRONOMY; 2019.
• Web of Science Citations: 0

Abstract

Extradimensional models are achieving their highest popularity nowadays, among other reasons, because they can plausible explain some standard cosmology issues, such as the cosmological constant and hierarchy problems. In extradimensional models, we can infer that the four-dimensional matter rises as a geometric manifestation of the extra coordinate. In this way, although we still cannot see the extra dimension, we can relate it to physical quantities that are able to exert such a mechanism of matter induction in the observable universe. In this work we propose that scalar fields are those physical quantities. The models here presented are purely geometrical no matter the fact that Lagrangian is assumed and even the scalar fields are contained in the extradimensional metric. The results are capable of describing different observable cosmic features and yield an alternative to ultimately understand the extra dimension and the mechanism in which it is responsible for the creation of matter in the observable universe. (AU)

• FAPESP's process: 15/08476-0 - Gravitational waves in f(R,T) theories: polarization states and astrophysical sources
• Grantee: Pedro Henrique Ribeiro da Silva Moraes
• Support type: Scholarships in Brazil - Post-Doctorate
• FAPESP's process: 16/03276-5 - General theory of Oscillons in Lorentz violating scenarios, configurational entropy and physics of nanomaterials
• Grantee: Rafael Augusto Couceiro Correa
• Support type: Scholarships in Brazil - Post-Doctorate
• FAPESP's process: 17/26646-5 - Oscillons in scalar field theories
• Grantee: Rafael Augusto Couceiro Correa
• Support type: Scholarships abroad - Research Internship - Post-doctor