Distributed Quantum Sensing With Waveguide-coupled Quantum Emitters
Isack Padilla, Prajit Dhara, Annyun Das, Saikat Guha, Kanu Sinha · 2025
We propose a setup for sensing field gradients via waveguide-coupled quantum emitters. We demonstrate that delayed (non-Markovian) interactions between such macroscopically separated emitters enhance the quantum Fisher information associated with estimating field gradients.