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/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

This paper investigates the question whether a realistic black hole can be inprincipal similar to a star, having a large but finite redshift at its horizon.If matter spreads throughout the interior of a supermassive black hole withmass $M\sim10^9M_\odot$, it has an average density comparable to air and it mayarise from a Bose-Einstein condensate of densely packed H-atoms. Within theRelativistic Theory of Gravitation with a positive cosmological constant, abosonic quantum field describing H atoms is coupled to the curvature scalarwith dimensionless coupling $\xi$. In the Bose-Einstein condensed groundstatean exact, self-consistent solution for the metric occurs for a certain largevalue of $\xi$, quadratic in the black hole mass. It is put forward that $\xi$is set by proper choice of the background metric as a first step of arenormalization approach, while otherwise the non-linearities are small. Theblack hole has a hair, the binding energy. Fluctuations about the ground stateare considered.

Bose-Einstein condensed supermassive black holes: a case of renormalized quantum field theory in curved space-time