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

Journal Article · Thu Jan 01 00:00:00 EST 2015 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2015/01/003· OSTI ID:22382041

Noller, Johannes ^[1]; Melville, Scott ^[2]

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1. Astrophysics, University of Oxford, DWB, Keble Road, Oxford, OX1 3RH (United Kingdom)
2. The Queen's College, High Street, Oxford, OX1 4AW (United Kingdom)

In 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.

• OSTI ID: 22382041
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 01; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
COUPLING
EQUIVALENCE PRINCIPLE
GRAVITATION
INTERACTIONS
MATTER
METRICS
SPIN