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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

In the framework of a Varying Speed of Light theory, we study the eigenvaluesassociated with the Wheeler-DeWitt equation representing the vacuum expectationvalues associated with the cosmological constant. We find that theWheeler-DeWitt equation for the Friedmann-Lema\^{\i}tre-Robertson-Walker metricis completely equivalent to a Sturm-Liouville problem provided that the relatedeigenvalue and the cosmological constant be identified. The explicitcalculation is performed with the help of a variational procedure with trialwave functionals related to the Bessel function of the second kind $K_{\nu}\left( x\right) $. We find the existence of a family of eigenvalues associatedto a negative power of the scale. Furthermore, we show that at the inflationaryscale such a family of eigenvalues does not appear.

The Cosmological Constant as an Eigenvalue of the Hamiltonian constraint in a Varying Speed of Light theory