Pioneer in spintronics and quantum information engineering. Research spans: (1) NV-center spin qubits in diamond for quantum sensing and communication including nanomagnetic imaging; (2) spin defects in SiC and Er-doped hosts for quantum network nodes at telecom wavelengths; (3) molecular and protein-based spin qubits (2025 fluorescent-protein spin qubit, Physics World Top-10); (4) coherent Er spin defects in colloidal nanocrystal hosts (2024, with Alivisatos). Founding Director Chicago Quantum Exchange. Joint Senior Scientist Argonne. Large infrastructure-rich group with strong industry ties (IBM, Intel, Google quantum).