The coupling to matter in massive, bi- and multi-gravity

Johannes Noller; Scott Melville

doi:10.1088/1475-7516/2015/01/003

The coupling to matter in massive, bi- and multi-gravity

Johannes Noller, Scott Melville

Institute of Cosmology & Gravitation

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Abstract

n this paper we construct a family of ways in which matter can couple to one or more `metrics'/spin-2 fields in the vielbein formulation. We do so subject to requiring the weak equivalence principle and the absence of ghosts from pure spin-2 interactions generated by the matter action. Results are presented for Massive, Bi- and Multi-Gravity theories and we give explicit expressions for the effective matter metric in all of these cases.

Original language	English
Article number	003
Pages (from-to)	1-19
Number of pages	19
Journal	Journal of Cosmology and Astroparticle Physics
Volume	2015
Issue number	01
DOIs	https://doi.org/10.1088/1475-7516/2015/01/003
Publication status	Published - 7 Jan 2015

Keywords

modified gravity
gravity
dark energy theory
RCUK
STFC

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10.1088/1475-7516/2015/01/003

Noller_2015_J._Cosmol._Astropart._Phys._2015_003Final published version, 234 KBLicence: CC BY

Cite this

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AB - n this paper we construct a family of ways in which matter can couple to one or more `metrics'/spin-2 fields in the vielbein formulation. We do so subject to requiring the weak equivalence principle and the absence of ghosts from pure spin-2 interactions generated by the matter action. Results are presented for Massive, Bi- and Multi-Gravity theories and we give explicit expressions for the effective matter metric in all of these cases.

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KW - gravity

KW - dark energy theory

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KW - STFC

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The coupling to matter in massive, bi- and multi-gravity

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Keywords

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