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 Plus annual

Presents the access of premium content as premium feature

Premium Content

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 annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In this paper we present a statistical description of the cosmologicalconstant in terms of massless bosons (gravitons). To this purpose, we use ourrecent results implying a non vanishing temperature ${T_{\Lambda}}$ for thecosmological constant. In particular, we found that a non vanishing$T_{\Lambda}$ allows us to depict the cosmological constant $\Lambda$ ascomposed of elementary oscillations of massless bosons of energy $\hbar\omega$by means of the Bose-Einstein distribution. In this context, as happens forphotons in a medium, the effective phase velocity $v_g$ of these masslessexcitations is not given by the speed of light $c$ but it is suppressed by afactor depending on the number of quanta present in the universe at theapparent horizon. We found interesting formulas relating the cosmologicalconstant, the number of quanta $N$ and the mean value $\overline{\lambda}$ ofthe wavelength of the gravitons. In this context, we study the possibility tolook to the gravitons system so obtained as being very near to be aBose-Einstein condensate. Finally, an attempt is done to write down theFriedmann flat equations in terms of $N$ and $\overline{\lambda}$.

A statistical representation of the cosmological constant from finite size effects at the apparent horizon