Kinetic part of dynamical torsion theory
The case that the metric has the form \(g_{\alpha \beta}=\delta_{\alpha \beta}\epsilon_{\alpha}\) and the torsion \(\Gamma^{\alpha}_{[\beta \gamma]}\) is invariant under Lorentz transformations is considered. This is done in a tetrad field. The Hamiltonian for this case is investigated and certain conditions for it to be positively definite are found. These conditions exclude ghosts and tachyons.
scientific article; zbMATH DE number 4064003