Four-form field versus fundamental scalar field

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Abstract

A modified-gravity theory with a four-form field strength F, a variable gravitational coupling parameter G(F), and a standard matter action are considered here. Maxwell and Einstein equations are now derived when including to action also derivates of F. The energy momentum tensor of the 4-form field contains both the part, which is typical for the fundamental (pseudo)scalar, and the part, which cancels the divergent contribution of the zero-point energies of quantum fields to the vacuum energy and thus leads to the natural nullification of the cosmological constant in Minkowski vacuum.

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Original languageEnglish
Pages (from-to)682–685
Number of pages4
JournalJETP Letters
Volume105
Issue number10
Publication statusPublished - 2017
MoE publication typeA1 Journal article-refereed

ID: 13522114