Barz builds integrated photonic quantum information processors - multi-photon entanglement, verified/blind quantum computing, and photonic networks - with direct relevance to photonic quantum metrology and distributed quantum sensing. In the broader landscape of NV-centre ensemble quantum sensing (DEER, nano-NMR, T1 relaxometry) operating near pT/sqrt(Hz) sensitivity, this work contributes photonic-network and multiphoton-metrology tools.
Rudolph is a pioneer of measurement-based and fusion-based photonic quantum computing architectures; he co-founded PsiQuantum and continues to work on the theory of scalable linear-optical quantum computation and quantum foundations at Imperial.