Título
Inhomogeneous barotropic FRW cosmologies with constant-shifted conformal hubble parameters
Autor
HARET CODRATIAN ROSU
Nivel de Acceso
Acceso Abierto
Identificador alterno
doi: https://doi.org/10.1142/S0217732313400178
Materias
Resumen o descripción
"It is known that the barotropic FRW system of differential equations for zero cosmological constant can be reduced to simple harmonic oscillator (HO) differential equations in the conformal time variable. This is due to the fact that the Hubble rate parameter in conformal time is the solution of a simple Riccati equation of constant coefficients. In previous works, we have used this mathematical result to set the barotropic HO equations in the nonrelativistic supersymmetric approach by factorizing them. If a constant additive parameter, denoted by S, is added to the common Riccati solution of these supersymmetric partner cosmologies one obtains inhomogeneous barotropic cosmologies with periodic singularities in their spatial curvature indices that are counterparts of the non-shifted supersymmetric partners. The zero-mode solutions of these cyclic singular cosmologies are reviewed here as a function of real and imaginary shift parameter. We also notice the modulated zero modes obtained by using the general Riccati solution and comment on their cosmological application."
Editor
World Scientific Publishing Company
Fecha de publicación
2013
Tipo de publicación
Artículo
Versión de la publicación
Versión aceptada
Recurso de información
Formato
application/pdf
Idioma
Inglés
Audiencia
Público en general
Sugerencia de citación
HARET C. ROSU and KIRA V. KHMELNYTSKAYA, Mod. Phys. Lett. A 28, 1340017 (2013)
Repositorio Orígen
Repositorio IPICYT
Descargas
398