Modified coupling procedure for the Poincaré gauge theory of gravity
arXiv:0906.3523 · doi:10.1103/PhysRevD.79.127501
Abstract
The minimal coupling procedure, which is employed in standard Yang-Mills theories, appears to be ambiguous in the case of gravity. We propose a slight modification of this procedure, which removes the ambiguity. Our modification justifies some earlier results concerning the consequences of the Poincaré gauge theory of gravity. In particular, the predictions of the Einstein-Cartan theory with fermionic matter are rendered unique.
arXiv comment4 pages
References in corpus (12)
- Metric-Affine Gauge Theory of Gravity: Field Equations, Noether Identities, World Spinors, and Breaking of Dilation Invariance
- Physical effects of the Immirzi parameter
- Propagating torsion from first principles
- Volume-forms and Minimal Action Principles in Affine Manifolds
- Neutron star in presence of torsion-dilaton field
- Gravitational contribution to fermion masses
- Einstein-Cartan gravity with Holst term and fermions
- Volume elements and torsion
- Solar System Experiments and the Interpretation of Saa's Model of Gravity with Propagating Torsion as a Theory with Variable Plank "Constant"
- Geometric Interpretation of Electromagnetism in a Gravitational Theory with Torsion and Spinorial Matter
- Nonuniqueness of gravity-induced fermion interaction in the Einstein-Cartan theory
- Intrinsic momentum in Poincare gauge theory
Cited by in corpus (4)
- The Poincaré Gauge Theory of Gravty and the Immirzi parameter
- Translations in Quantum Field Theory and the Poincaré Gauge Theory of Gravity
- Generalized Dirac bracket and the role of the Poincaré symmetry in the program of canonical quantization of fields 1
- A New Improved Energy-Momentum Tensor and Its Possible Role in Gravity