New variables in gravity theories

Details New variables in gravity theories New variables in gravity theories

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phrvd..42..441w&link_type=abstract

Physical Review D (Particles and Fields), Volume 42, Issue 2, 15 July 1990, pp.441-448

Physics

16

Scientific paper

Considering Einstein's gravity theory as a gauge theory of the translation group T4, we introduce new variables which simplify the field equations of general relativity considerably. In a 3+1 decomposition, we discuss positive-semidefinite gravitational energy and establish a relationship of our variables to Ashtekar's. We show that our method applies also to the Poincaré gauge theory of gravitation.

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