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Scalar and Vector Massive Fields in Lyra's Manifold

R. Casana, C. A. M. de Melo, B. M. Pimentel

hep-tharXiv:hep-th/0501085

Abstract

The problem of coupling between spin and torsion is analysed from a Lyra's manifold background for scalar and vector massive fields using the Duffin-Kemmer-Petiau (DKP) theory. We found the propagation of the torsion is dynamical, and the minimal coupling of DKP field corresponds to a non-minimal coupling in the standard Klein-Gordon-Fock and Proca approaches. The origin of this difference in the couplings is discussed in terms of equivalence by surface terms.

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