English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

In this work we construct an effective four-dimensional model bycompactifying a ten-dimensional theory of gravity coupled with a real scalardilaton field on a time-dependent torus. This approach is applied toanisotropic cosmological Bianchi type I model for which we study the classicalcoupling of the anisotropic scale factors with the two real scalar moduliproduced by the compactification process. Under this approach, we present anisotropization mechanism for the Bianchi I cosmological model through theanalysis of the ratio between the anisotropic parameters and the volume of theUniverse which in general keeps constant or runs into zero for late times. Wealso find that the presence of extra dimensions in this model can acceleratethe isotropization process depending on the momenta moduli values. Finally, wepresent some solutions to the corresponding Wheeler-DeWitt (WDW) equation inthe context of Standard Quantum Cosmology.

Time-dependent toroidal compactification proposals and the Bianchi type I model: classical and quantum solutions