Research

We are pioneering new on-chip techniques to bring THz spectroscopy into the nanoscale regime—enabling precision studies of dual-gated 2D devices at cryogenic temperatures and under high magnetic fields. By bridging quantum materials and ultrafast THz science, our work not only promises to uncover new electronic and topological phenomena, but also lays the groundwork for future THz-integrated circuitry and ultrafast quantum sensing technologies.

Potts*, AKN*, et al. Nano Letters (2023)

Our lab explores how topology and strong electronic correlations combine to create exotic quantum phases with potential applications in quantum information. Topological superconductors can host Majorana zero modes—promising candidates for robust, fault-tolerant qubits—while correlated systems like the fractional quantum anomalous Hall state exhibit emergent excitations without magnetic fields. Probing these fragile states demands advanced spectroscopic tools in the suitable energy and time scale.

AKN et al. Nature Physics (2021)

AKN et al. PNAS (2023)

Two-dimensional quantum materials represent a frontier in condensed matter physics, where reduced dimensionality and exceptional tunability give rise to a rich tapestry of emergent quantum phases. By stacking, twisting, and electrostatically gating atomic layers, we can access and manipulate correlated states—from unconventional superconductivity to exotic magnetism—with unprecedented control. Our research leverages custom-built ultrafast spectroscopic tools to probe the nonequilibrium dynamics of quasiparticles at picosecond timescales. Beyond observation, we aim to actively engineer novel quantum phases via light-matter interactions, pushing the boundaries of quantum material design and functionality.

Novoselov et al. Science (2016)

Andrei et al. Nature Reviews Materials (2021)