Einstein's Equations Starting from Qubits
summary
Claim: starting from a lattice of qubits described by a critical, large‑N local Hamiltonian and represented by a MERA tensor network, one recovers a smooth bulk geometry whose entanglement splits into an area term plus bulk entropy; combining the CFT “first law” for ball regions, the Ryu–Takayanagi relation, and Iyer–Wald identities forces the linearized Einstein equations with universally coupled matter. The argument uses tensor networks for the kinematics and holographic entanglement for the dynamics.
AI-written summary · about