{ "id": "1808.01978", "version": "v1", "published": "2018-08-06T16:13:58.000Z", "updated": "2018-08-06T16:13:58.000Z", "title": "Gauge theory of Gravity based on the correspondence between the $1^{st}$ and the $2^{nd}$ order formalisms", "authors": [ "David Benisty", "Eduardo I. Guendelman" ], "comment": "6 pages, 2 figures", "categories": [ "hep-th", "gr-qc" ], "abstract": "A covariant canonical gauge theory of gravity free from torsion is studied. Using a metric conjugate momentum and a connection conjugate momentum, which takes the form of the Riemann tensor, a gauge theory of gravity is formulated, with form-invariant Hamiltonian. Through the introduction of the metric conjugate momenta, a correspondence between the Affine-Palatini formalism and the metric formalism is established, since when the dynamical gravitational Hamiltonian $\\tilde{H}_{Dyn}$ does not depend on the metric conjugate momenta, a metric compatibility is obtained from the equation of motions and the energy momentum is covariant conserved. When the gravitational Hamiltonian $\\tilde{H}_{Dyn}$ is depend on the metric conjugate momentum, an extension to the metric compatibility comes from the equation of motions and the energy momentum covariant conservation violates. For a sample of the $\\tilde{H}_{Dyn}$ which consists a quadratic term of the connection conjugate momentum, the effective Lagrangian has the Einstein Hilbert term with a quadratic Riemann term in the second order formalism. A bouncing inflation, in the context of cosmological solutions of this action is briefly discussed.", "revisions": [ { "version": "v1", "updated": "2018-08-06T16:13:58.000Z" } ], "analyses": { "keywords": [ "gauge theory", "metric conjugate momentum", "order formalism", "connection conjugate momentum", "correspondence" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable" } } }