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The Vector-Tensor nature of Bekenstein's relativistic theory of Modified Gravity

Abstract:
Bekenstein's theory of relativistic gravity is conventionally written as a bi-metric theory. The two metrics are related by a disformal transformation defined by a dynamical vector field and a scalar field. In this comment we show that the theory can be re-written as Vector-Tensor theory akin to Einstein-Aether theories with non-canonical kinetic terms. We discuss some of the implications of this equivalence.
Publication status:
Published

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Publisher copy:
10.1103/PhysRevD.74.044037

Authors


Journal:
Phys.Rev. D
Volume:
74
Issue:
4
Pages:
044037
Publication date:
2006-06-09
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
URN:
uuid:0dadbae3-bad8-4555-b165-7244e50ae2ed
Source identifiers:
207716
Local pid:
pubs:207716
Keywords:

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