A Large N expansion for Gravity

Details A Large N expansion for Gravity A Large N expansion for Gravity

2005-11-02

arxiv.org/abs/hep-th/0511017v2

Nucl.Phys. B731 (2005) 389-405

Physics

High Energy Physics

High Energy Physics - Theory

Accepted for publication on Nuclear Physics B. 25 pages, 11 figures, reference added

Scientific paper

10.1016/j.nuclphysb.2005.10.022

A Large N expansion for gravity is proposed. The scheme is based on the splitting of the Einstein-Hilbert action into the BF topological action plus a constraint. The method also allows to include matter fields. The relation between matter and non orientable fat graphs in the expansion is stressed; the special role of scalars is shortly discussed. The connections with the Holographic Principle and higher spin fields are analyzed.

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