30 September 2015 to 3 October 2015
Yerevan, Armenia
Etc/GMT+4 timezone

The quantum vacuum and the structure of empty space-time

2 Oct 2015, 15:50
40m
Small Hall, Guesthouse ()

Small Hall, Guesthouse

Speaker

Prof. Ashot Gevorgyan (Institute for Informatics and Automation Problems, NAS of Armenia)

Description

According to quantum field theory, the vacuum is a space all kinds of energetic particles and oscillating fields, which is in a state of statistical equilibrium is characterized by physical parameters and structure. Since the quantum vacuum pervades the entire extent of the universe then the study of its properties is a topical problem for deeply understanding of cosmology and in general for foundations of modern physics. Assuming that the quantum theory of field is possible precisely to describe without perturbation methods then the properties of the vacuum obviously will be analogous to the properties of an ensemble of the quantum harmonic oscillators. For the first time we considered this problem within limits of the stochastic differential equations of Maxwell--Langevin type. In particular assuming that fluctuations of the fields satisfy to properties of the ``white noise" , we proved that the Casimir vacuum in an equilibrium is described by the $10$-dimensional space-time, where $4D$ is the Minkowski space-time, while $6D$ is the compact topological space with the linear sizes of order $10^{-20}$ cm. It is shown that in the compact subspace is localized the main part of vacuum energy, which can claim the role of dark energy.

Primary author

Prof. Ashot Gevorgyan (Institute for Informatics and Automation Problems, NAS of Armenia)

Presentation Materials

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