ion trapping Barium Ion Qubits Using trapped Ba⁺ ions as a platform for quantum information processing. Hybrid Qubit-Qumode Systems Trapped-ion platforms for hybrid quantum computation and simulation using both discrete (qubit) and continuous-variable (qumode) degrees of freedom. Nuclear CP Violation Searching for CP-violating nuclear interactions using molecular ions as ultra-sensitive probes of physics beyond the Standard Model. photocathodes Spin-Polarized Photocathodes Developing next-generation spin-polarized electron sources for particle accelerators, in collaboration with ODU ECE and Jefferson Lab.