Fig. 1: A construction scheme for heralding virtual graph states, with emit-then-add.
From: Heralded photonic graph states with inefficient quantum emitters
A quantum emitter (red) is repeatedly excited until a single photon (orange) is successfully detected. Upon detection, logic is executed, which passes the conditional phase information written onto the emitter to an auxiliary memory spin (black), which encodes a virtual graph state (represented by dashed boundaries).
