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Ghost free massive ...
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Hassan, S. FawadStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
(författare)
Ghost free massive gravity with a general reference metric
- Artikel/kapitelEngelska2012
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LIBRIS-ID:oai:DiVA.org:su-80131
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-80131URI
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https://doi.org/10.1007/JHEP02(2012)026DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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AuthorCount:3;
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Theories of massive gravity inevitably include an auxiliary reference metric. Generically, they also contain an inconsistency known as the Boulware-Deser ghost. Recently, a family of non-linear massive gravity actions, formulated with a flat reference metric, were proposed and shown to be ghost free at the complete non-linear level. In this paper we consider these non-linear massive gravity actions but now formulated with a general reference metric. We extend the proof of the absence of the Boulware-Deser ghost to this case. The analysis is carried out in the ADM formalism at the complete non-linear level. We show that in these models there always exists a Hamiltonian constraint which, with an associated secondary constraint, eliminates the ghost. This result considerably extends the range of known consistent non-linear massive gravity theories. In addition, these theories can also be used to describe a massive spin-2 field in an arbitrary, fixed gravitational background. We also discuss the positivity of the Hamiltonian.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Rosen, Rachel A.
(författare)
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Schmidt-May, AngnisStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)aschm
(författare)
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Stockholms universitetFysikum
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Journal of High Energy Physics (JHEP):2, s. 026-1126-67081029-8479
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