Canonical description for formulation of embedding gravity as a field theory in a flat spacetime

Abstract

We consider the approach to gravity in which four-dimensional curved spacetime is represented by a surface in a flat Minkowski space of higher dimension. After a short overview of the ideas and results of such an approach we concentrate on the study of the so-called splitting gravity, a form of this description in which constant value surface of a set of scalar fields in the ambient flat space-time defines the embedded surface. We construct a form of action which is invariant w.r.t. all symmetries of this theory. We construct the canonical formalism for splitting gravity. The resulting theory turns out to be free of constraints. However, the Hamiltonian of this theory is an implicit function of canonical variables. Finally, we discuss the path integral quantization of such a theory.

arXiv comment16 pages

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Cited by in corpus (2)

• The unification of gravity and the spin-1 field
• Global embedding of BTZ spacetime using generalized method of symmetric embeddings construction