Hestenes' Tetrad and Spin Connections

dc.creatorReifler, Frank
dc.creatorMorris, Randall
dc.date2007-06-08
dc.date.accessioned2026-07-07T10:56:09Z
dc.date.available2026-07-07T10:56:09Z
dc.descriptionDefining a spin connection is necessary for formulating Dirac's bispinor equation in a curved space-time. Hestenes has shown that a bispinor field is equivalent to an orthonormal tetrad of vector fields together with a complex scalar field. In this paper, we show that using Hestenes' tetrad for the spin connection in a Riemannian space-time leads to a Yang-Mills formulation of the Dirac Lagrangian in which the bispinor field is mapped to a set of Yang-Mills gauge potentials and a complex scalar field. This result was previously proved for a Minkowski space-time using Fierz identities. As an application we derive several different non-Riemannian spin connections found in the literature directly from an arbitrary linear connection acting on Hestenes' tetrad and scalar fields. We also derive spin connections for which Dirac's bispinor equation is form invariant. Previous work has not considered form invariance of the Dirac equation as a criterion for defining a general spin connection.
dc.identifierhttps://arxiv.org/abs/0706.1258
dc.identifierhttp://arxiv.org/abs/0706.1258
dc.identifierInt.J.Theor.Phys.44:1307-1324,2005
dc.identifierdoi:10.1007/s10773-005-4688-8
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186315
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectMathematical Physics
dc.subjectQuantum Physics
dc.titleHestenes' Tetrad and Spin Connections
dc.typetext

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