Develops quantum sensors based on neutral atoms and solid-state atom-like defects (e.g. NV diamond) for measuring inertial forces, magnetic fields, and time, and applies nanophotonics/nanofabrication to improve the size, weight, and performance of quantum sensing instruments; collaborates with Mikhail Kats on metasurface-enhanced atomic magnetometers.

Develops scalable, atomically-precise low-dimensional (2D/1D/0D) materials and heterostructures, focusing on single-photon emitters and spin defects in semiconductors for quantum sensing and molecular-based qubits.

Studies light-matter interaction at the nanoscale (metasurfaces, thermal emission, plasmonics) and, with Jennifer Choy, has developed metasurface polarizing beamsplitters that enable compact, chip-integrated atomic magnetometers (optically pumped magnetometry) alongside broader work in quantum and topological photonics.

Develops superconducting qubits and QND microwave single-photon detectors, applying them both to scalable quantum computing architectures and to axion/dark-photon dark-matter search experiments as ultra-sensitive quantum sensors.

Studies neutral-atom quantum computing and quantum optics with Rydberg atoms in optical tweezer arrays, including entanglement, nonlinear optics, and Rydberg-based electrometry/sensing.

Builds neutral-atom-array platforms coupled to optical cavities to explore nonlocal entanglement for modular fault-tolerant quantum computing and distributed quantum sensor networks; also works on quantum error correction and quantum foundations.

Works on quantum optics and precision atomic physics, including superradiant lasing for next-generation atomic clocks and fundamental studies of light-atom interaction.