Kaluza-Klein interacting cosmic fluid cosmological model
نویسندگان
چکیده
منابع مشابه
On Some Accelerating Cosmological Kaluza-Klein Models
We consider (4+D)-dimensional Kaluza-Klein cosmological model with two scaling factors, as real, p-adic and adelic quantum mechanical one. One of the scaling factors corresponds to the D-dimensional internal space, and second one to the 4-dimensional universe. In standard quantum cosmology, i.e. over the field of real numbers R, it leads to dynamical compactification of additional dimensions an...
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The lightest Kaluza-Klein particle (LKP) in models with universal extra dimensions is an interesting dark matter candidate that has recently received great attention. Here, we investigate the antiproton flux from LKP annihilations in the galactic halo. In our analysis we include different halo density profiles and allow for part of the dark matter to be concentrated in ’clumps’ rather than bein...
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We present technical results which extend previous work and show that the cosmological constant of general relativity is an artefact of the reduction to 4D of 5D Kaluza-Klein theory (or 10D superstrings and 11D supergravity). We argue that the distinction between matter and vacuum is artificial in the context of ND field theory. The concept of a cosmological “constant” (which measures the energ...
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It is shown that, with the exception of n = 2, the Einstein-Hilbert action in n+D+d dimensions, with n times, is invariant under the duality transformation a → 1 a and b → 1 b , where a is a Friedman-Robertson-Walker scale factor in D dimensions and b a Brans-Dicke scalar field in d dimensions respectively. We study the 2 +D + d dimensional cosmological model in some detail. Key words; Cosmolog...
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We here investigate the model of interacting dark energy in the context of five dimensional Kaluza-Klein theory of gravitation. The effective equations of state of dark energy are evaluated for various choices of the variable time dependent cosmological constant. We have found that the interacting dark energy obeys the phantom divide/crossing scenario in this generalized model. It is also shown...
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ژورنال
عنوان ژورنال: Journal of Theoretical and Applied Physics
سال: 2012
ISSN: 2251-7235
DOI: 10.1186/2251-7235-6-33