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

We take a Dirac field non-minimally coupled to the gravitational field withinthe framework of the Poincar\'e gauge theory of gravity with torsion andcurvature. We study the subcase of "weak" gravity, that is, the gravitationalLagrangian depends only linearly on the curvature and quadratically on thetorsion. We include all pieces in curvature and torsion that are of odd parity.The second field equation of gravity is derived by varying the Lorentzconnection. We solve it with respect to the torsion and decompose the firstfield equation of gravity and the Dirac equation into Einsteinian pieces andpost-Riemannian terms.

Non-minimally coupled Dirac equation with torsion: Poincar\'e gauge theory of gravity with even and odd parity terms