Nonsymmetric Gravity Theories: Inconsistencies and a Cure

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dc.creatorDamour, T.
dc.creatorDeser, S.
dc.creatorMcCarthy, J.
dc.date1992-07-22
dc.date.accessioned2026-07-07T11:46:21Z
dc.date.available2026-07-07T11:46:21Z
dc.descriptionMotivated by the apparent dependence of string $σ$--models on the sum of spacetime metric and antisymmetric tensor fields, we reconsider gravity theories constructed from a nonsymmetric metric. We first show that all such "geometrical" theories homogeneous in second derivatives violate standard physical requirements: ghost-freedom, absence of algebraic inconsistencies or continuity of degree-of-freedom content. This no-go result applies in particular to the old unified theory of Einstein and its recent avatars. However, we find that the addition of nonderivative, ``cosmological'' terms formally restores consistency by giving a mass to the antisymmetric tensor field, thereby transmuting it into a fifth-force-like massive vector but with novel possible matter couplings. The resulting macroscopic models also exhibit ``van der Waals''-type gravitational effects, and may provide useful phenomenological foils to general relativity.
dc.description34 pages
dc.identifierhttps://arxiv.org/abs/gr-qc/9207003
dc.identifierhttp://arxiv.org/abs/gr-qc/9207003
dc.identifierPhys.Rev.D47:1541-1556,1993
dc.identifierdoi:10.1103/PhysRevD.47.1541
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/202195
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleNonsymmetric Gravity Theories: Inconsistencies and a Cure
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