22 research outputs found
Inflation as a White Hole explosion from a 5D vacuum
Using a new kind of 5D Ricci-flat canonical metric, we obtain by a static
foliation an effective 4D Schwarzschild-de Sitter hypersurface. We examine some
particular initial conditions which could be responsible for the inflationary
expansion of the early universe, which could be driven by the explosion of a
White Hole (WH). The zeroth order spectrum outside the WH describes quantum
fluctuations, which for a scale invariant power spectrum, can be expressed in
terms of the cosmological constant, or the square mass of the WH.Comment: improved versio
Mass density of the Earth from a Gravito-Electro-Magnetic 5D vacuum
We calculate the mass density of the Earth using a Gravito-Electro-Magnetic
theory on an extended 5D Schwarzschild-de Sitter metric, in which we define the
vacuum. Our results are in very good agreement with that of the
Dziewonski-Anderson model.Comment: 9 pages, 2 figure
Scalar Metric fluctuations in space time matter inflation
Using the Ponce de Leon background metric, which describes a 5D universe in
an apparent vacuum: , we study the effective 4D evolution of
both, the inflaton and gauge-invariant scalar metric fluctuations, in the
recently introduced model of space time matter inflation.Comment: (improved version) Accepted in Physics Letters
Dirac equation in a de Sitter expansion for massive neutrinos from modern Kaluza-Klein theory
Using the modern Kaluza-Klein theory of gravity (or the Induced Matter
theory), we study the Dirac equation for massive neutrinos on a de Sitter
background metric from a 5D Riemann-flat (and hence Ricci-flat) extended de
Sitter metric, on which is defined the vacuum for test massless 1/2-neutral
fields minimally coupled to gravity and free of any other interactions. We
obtain that the effective 4D masses of the neutrinos can only take three
possible values, which are related to the (static) foliation of the fifth and
noncompact extra dimension.Comment: Version with some corrections included in the erratu