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Towards a solution of the cosmological constant problem

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arxiv 0907.4887 v6 pith:MNQ2KZZL submitted 2009-07-28 hep-th astro-ph.COgr-qc

Towards a solution of the cosmological constant problem

classification hep-th astro-ph.COgr-qc
keywords fieldvacuumconstantcosmologicalsolutionextendedproblemtheory
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The standard model of elementary particle physics and the theory of general relativity can be extended by the introduction of a vacuum variable which is responsible for the near vanishing of the present cosmological constant (vacuum energy density). The explicit realization of this vacuum variable can be via a three-form gauge field, an aether-type velocity field, or any other field appropriate for the description of the equilibrium state corresponding to the Lorentz-invariant quantum vacuum. The extended theory has, without fine-tuning, a Minkowski-type solution of the field equations with spacetime-independent fields and provides, therefore, a possible solution of the main cosmological constant problem.

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