Matthew Sellars

Honorary Associate Professor Matthew Sellars is a distinguished researcher in the Department of Physics at the Australian National University's College of Science. He leads significant research in quantum information science with particular expertise in rare-earth ion systems. His work bridges fundamental quantum physics with practical quantum technology applications.

Sellars' research focuses on quantum memory systems, solid-state spectroscopy of rare-earth ions, and quantum information processing in crystalline materials. His work has pioneered techniques for manipulating and reading out quantum states in rare-earth-doped crystals, with particular emphasis on europium and erbium systems. His research group, the Solid State Spectroscopy Group within the Quantum Science & Technology Research group, investigates quantum phenomena at the atomic scale in solid-state systems, developing technologies for quantum computing and communication.

Analysis of his recent publications reveals a strong focus on single-ion detection techniques, quantum memory optimization, and the fundamental properties of rare-earth ions in various host materials. His work spans theoretical modeling, experimental implementation, and practical applications of quantum systems, with increasing emphasis on integration with semiconductor technology. The research demonstrates sophisticated understanding of quantum coherence, spin physics, and optical interactions in solid-state systems.

Sellars maintains extensive collaborative relationships with researchers across Australia and internationally, working with institutions including the Australian Research Council Centre of Excellence for Quantum Computation and Communication Technology. His publication record demonstrates consistent high-impact contributions to the field of quantum information science since the late 1990s, with recent work showing increased focus on practical quantum technologies and integration with semiconductor platforms.

His laboratory work involves advanced optical spectroscopy techniques, cryogenic measurements, and nanofabrication approaches to create and characterize quantum systems at the single-atom level. The research group maintains specialized facilities for quantum optics experiments, including ultra-stable laser systems, cryogenic setups, and nanoscale characterization equipment.