FRW barotropic zero modes: dynamical systems observability
Rosu Barbus, Haret-Codratian
Ibarra Junquera, Vrani
"The dynamical systems observability properties of barotropic bosonic and fermionic FRW cosmological oscillators are investigated. Nonlinear techniques for dynamical analysis have been recently developed in many engineering areas but their application has not been extended beyond their standard ﬁeld. This paper is a small contribution to an extension of this type of dynamical systems analysis to FRW barotropic cosmolo-gies. We ﬁnd that determining the Hubble parameter of barotropic FRW universes does not allow the observability, i.e., the determination of neither the barotropic FRW zero mode nor of its derivative as dy-namical cosmological states. Only knowing the latter ones correspond to a rigorous dynamical observability in barotropic cosmology."
Knowledge areaCIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA
FRW barotropic cosmology
(Nonlinear) dy-namical systems observability