Poincaré–Plebański formulation of GR and dual simplicity constraints
Sign Up to like & getrecommendations! Published in 2018 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/aae9b7
Abstract: We revise the classical continuum formulation behind the Spin Foam approach to the quantization of gravity. Based on the recent applications of the current EPRL-FK model beyond triangulations, we identify the tension with the implementation… read more here.
Keywords: pleba ski; poincar pleba; formulation; simplicity constraints ... See more keywords
Plebański-Demiański solutions with dynamical torsion and nonmetricity fields
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2022/04/011
Abstract: We construct Plebański-Demiański stationary and axisymmetric solutions with two expanding and double principal null directions in the framework of Metric-Affine gauge theory of gravity. Starting from the new improved form of the metric with vanishing… read more here.
Keywords: ski demia; demia ski; pleba ski; torsion nonmetricity ... See more keywords