The Photonic Quantum Information Processing (PQuIP) group at the University of Ottawa is looking for candidates for a PhD student position with focus on Light-matter interaction for quantum applications. The group has a broad range of interest from quantum communication and networks to quantum metrology and computing. We will theoretically explore light-matter interfaces such as atomic ensembles, cavity QED, defects in solids, and Rydberg physics for various applications in quantum communication and metrology.