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Scalar tachyons in the de Sitter universe

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arxiv 1003.1396 v2 pith:OEBRHOWJ submitted 2010-03-06 hep-th gr-qc

Jacques Bros , Henri Epstein , Ugo Moschella This is my paper
classification hep-thgr-qc
keywords fieldsitterconstructioncovariantequationfieldslocalphysical
verification ladder T0 review T1 audit T2 compute T3 formal
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We provide a construction of a class of local and de Sitter covariant tachyonic quantum fields which exist for discrete negative values of the squared mass parameter and which have no Minkowskian counterpart. These quantum fields satisfy an anomalous non-homogeneous Klein-Gordon equation. The anomaly is a covariant field which can be used to select the physical subspace (of finite codimension) where the homogeneous tachyonic field equation holds in the usual form. We show that the model is local and de Sitter invariant on the physical space. Our construction also sheds new light on the massless minimally coupled field, which is a special instance of it.

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Cited by 2 Pith papers

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    A covariant Higgs mechanism turns the partially massless graviton into a fully massive spin-2 field by condensing a fractonic matter field with dipole symmetry.

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    hep-th 2026-07 accept novelty 6.0 of 10

    Both Δ=1 and Δ=2 late-time Maxwell operators on planar dS4 furnish the photon unitary discrete series of SO(4,1), which splits into opposite-helicity summands via self-dual field-strength sectors.

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