The Schwinger Dyson equations and the algebra of constraints of random tensor models at all orders

Details The Schwinger Dyson equations and the algebra of constraints of random tensor models at all orders The Schwinger Dyson equations and the algebra of constraints of random tensor models at all orders

2012-03-22

arxiv.org/abs/1203.4965v1

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

Random tensor models for a generic complex tensor generalize matrix models in arbitrary dimensions and yield a theory of random geometries. They support a 1/N expansion dominated by graphs of spherical topology. Their Schwinger Dyson equations, generalizing the loop equations of matrix models, translate into constraints satisfied by the partition function. The constraints have been shown, in the large N limit, to close a Lie algebra indexed by colored rooted D-ary trees yielding a first generalization of the Virasoro algebra in arbitrary dimensions. In this paper we complete the Schwinger Dyson equations and the associated algebra at all orders in 1/N. The full algebra of constraints is indexed by D-colored graphs, and the leading order D-ary tree algebra is a Lie subalgebra of the full constraints algebra.

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