Holographic Renormalization Group with Fermions and Form Fields

TL;DR

This paper develops holographic renormalization group equations for gravity theories with fermions and form fields, analyzing Ward identities, anomalies, and duality consistency conditions using Hamilton-Jacobi methods.

Contribution

It introduces a comprehensive framework for holographic RG with fermions and form fields, including the structure of Ward identities, anomalies, and duality constraints.

Findings

Derived holographic RG equations for theories with fermions and form fields.

Analyzed Ward identities and anomalies in the holographic context.

Identified conditions for the existence of dual theories and solutions to constraint equations.

Abstract

We find the Holographic Renormalization Group equations for the holographic duals of generic gravity theories coupled to form fields and spin-1/2 fermions. Using Hamilton-Jacobi theory we discuss the structure of Ward identities, anomalies, and the recursive equations for determining the divergent terms of the generating functional. In particular, the Ward identity associated to diffeomorphism invariance contains an anomalous contribution that, however, can be solved either by a suitable counter term or by imposing a condition on the boundary fields. Consistency conditions for the existence of the dual arise, if one requires that a Callan-Symanzik type equation follows from the Hamiltonian constraint. Under mild assumptions we are able to find a class of solutions to the constraint equations. The structure of the fermionic phase space and constraints is treated extensively for any dimension and signature.