Effective Einsteinian gravity from Poincare gauge field theory

Details Effective Einsteinian gravity from Poincare gauge field theory Effective Einsteinian gravity from Poincare gauge field theory

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phla..113..471b&link_type=abstract

Physics Letters (ISSN 0375-9601), vol. 113A, Jan. 20, 1986, p. 471-475. DFG-supported research.

Physics

21

Gauge Theory, Gravitation Theory, Relativity, Unified Field Theory, Cartan Space, Cosmology, Poincare Problem, Riemann Manifold, Yang-Mills Theory

Scientific paper

The Poincare gauge theory of gravity should apply in the microphysical domain. This paper investigates its implications for macrophysics. Weakly self double dual Riemann-Cartan curvature is assumed throughout. It is shown that the metrical background is then determined by Einstein's field equations with the Belinfante-Rosenfeld symmetrized energy-momentum current amended by spin squared terms. Moreover, the effective cosmological constant can be reconciled with the empirical data by absorbing the corresponding constant curvature part into the dynamical torsion of recently found exact solutions. Macroscopically this extra torsion remains undetectable.

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