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

Within our model of "photonic portal" to the hypothetical hidden sector ofthe Universe, an option is considered, where the massive sterile bosons,mediating in this sector and described by the antisymmetric-tensor fieldA_{\mu\nu} (of dimension one), are gauged by a vector field \chi_\mu (ofdimension zero). When the Einsteinian gravity is switched on into this model,then it is argued that the metric g_{\mu\nu}(x) of spacetime is proportional to<\chi_\mu(x) \chi_\nu(x)>_{vac}, being in this way classical in its nature, notthe subject of quantization within an overall quantum theory includinggravitation. A Lagrangian density(generally dependent on \chi_\mu and its firstand second derivatives) is tentatively proposed in such a form, where \chi_\muappears also outside of A_{\mu\nu}, spoiling the trivial gauge invariance ofour earlier model with respect to the gauging field \chi_\mu. If thecosmological constant \lambda is neglected, then the term with \chi_\mu outsideof A_{\mu\nu} vanishes.

Hypothesis of photonic portal in the problem of dark matter and classical nature of gravitation