A Generalized Protocol for Bulk Reconstruction from Generalized Free Fields

Bulk reconstruction is an important step in establishing the dictionary between boundary and bulk quantities in holographic theories. If the starting point is a quantum theory which serves as the putative boundary model, in what cases can one construct a bulk dual description? I will discuss recent work in which we devise a generalized protocol for constructing a bulk theory from any boundary model of generalized free fields. Unlike HKLL reconstruction, the bulk geometry and dynamics are fully emergent. I will discuss the application of our protocol to construct bulk descriptions for various SYK models beyond the conformal limit in which they are known to have a canonical dual. I will show evidence of that some geometric features of the canonical bulk survive in the non-conformal limit, and remark on the ability to extend the protocol to explore emergent bulk physics in more general settings.