Cosmological Pattern of Microphysics in the Inflationary by Maxim Y. Khlopov, Sergei G. Rubin

By Maxim Y. Khlopov, Sergei G. Rubin

Modern cosmology is a quick constructing ?eld of analysis. New technical units and instruments offer the neighborhood with new experimental facts measured with excessive accuracy. The self-consistent clarification of those facts wishes t- oretical versions which are in accordance with hypothetical predictions of particle concept. of their flip, such predictions suggest cosmology for his or her probe. Speci?c st- ies of the cosmological effects of particle conception, linking them to their observable signatures, are real. This boiling kettle of theoretical learn and experimental efforts produces rules that would be preserved for following generations. the purpose of this ebook is to acquaint the reader with a few of these rules, - fering nontrivial how you can probe the actual foundation of contemporary cosmology. an in depth assessment of the latest principles in smooth cosmology, e. g. , similar with the advance of the M-brane conception, lies past the scope of our publication, that's aimed toward delivering a ?rmly validated process of probes for those principles, linking their predictions to their attainable experimental try. We use the framework of in?ationary paradigm to bare the phenomena that could make clear the actual starting place of the saw Universe, of its topic content material and large-scale constitution. The an important position of quantum ?uctuations in construction of our Universe and in attainable beneficial properties, re?ecting cosmological effect of microphysics, is mentioned. those gains are proven to be obtainable to - perimental attempt within the close to future.

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To this end, consider a behavior of a horizon with time in the co moving coordinates. The most simple way to determine the size of the horizon is to find a distance where light travels from the moment 1. '= 0. Hence, Eq. 64) decreases with time. Rut average distance between the test particles in the comoving space is shown to be constant. Consequently, when the horizon appears to be smaller than this distance, the particles turn out to be placed in a causally disconnected area and the interaction between them must be absent.

20) and depends on the difference / 1 - I only. The horizon size is a very important value that strongly influences all physical phenomena. The horizon size equals infinity when physical processes run in the Minkowski space. The situation differs drastically tor the FRW and tor inflationary stages. As \Ve will see below an interplay between the horizon size and the spatial scale of physical processes must be taken into account at these stages. One has to keep in mind from the beginning what ti·ame is chosen for given consideration.

The last is charactelized by the Hubble parameter H, so that l(t = 0) = /o < H 1, Ilcrc and below we suppose Chc llubblc parameter being a constant for simplicity. (i) = a(t )r: ll(t) ~ a(t ) . 72} Using these formulae one can easily find the ratio l(t) / //(t)- 1 of the physical diiitance between the particles and horizon l(t) . H-l = a(t)r. )- I) ~ reH"r in f l and we reveal that the size between the two points grows exponentially comparing with the size of horizon H- 1. e. l (t 1) > H (t1 ) even if they were produced in a causally connected region from the beginning.

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