Surpassing spectator qubits with photonic modes and continuous measurement for Heisenberg-limited noise mitigation
Abstract Noise is an ever-present challenge to the creation and preservation of fragile quantum states.Recent work suggests that spatial noise correlations can be harnessed as a resource for noise mitigation via the use of spectator qubits to measure environmental noise.In this work we generalize this concept from spectator qubits to a spectator mo