Professor Drummond is highly respected internationally for his work on tests of quantum theory, theory of solitons, computational physics, physics of communication and information, laser physics, and Bose-Einstein condensation. His prediction of the first quantum effects in solitons was verified experimentally and featured on Nature's front cover. Other experimentally tested predictions include the effect of nonclassical light on atoms, modelocked superfluorescent lasers, spatio-temporal solitons, femtosecond optical switching, multi-particle Bell inequalities, and coherently coupled atom-molecular BEC. He developed the first time-domain simulation methods in quantum field theory. Drummond's work has had a high impact, having received over 3000 citations.