Mirhosseini's group builds hybrid quantum systems that interface superconducting circuits with acoustic and optical modes - circuit quantum acousto-dynamics, phonon-mediated interactions, and microwave-to-optical transduction - for quantum networking and quantum-limited signal transduction. For context, this complements the established paradigm of NV-diamond ensemble magnetometry (Hahn-echo/DEER, nanoscale NMR, T1 relaxometry) operating near pT/√Hz sensitivity.