Gabriel Aeppli is a condensed matter physicist whose work has identified magnets with tuneable quantum fluctuations that can be used to study the transition between classical and quantum behaviour. His work has helped to demonstrate that quantum spin fluctuations underlie exotic superconductivity.

His most recent work has focused on the potential applications of nanotechnology in both information processing and health care. Alongside his research, Gabriel helped to found the London Centre for Nanotechnology and has been instrumental in setting its course of operation.

Gabriel has received a number of accolades in recognition of his work, including the Oliver E. Buckley Condensed Matter Prize of the American Physical Society in 2005. In addition to being a Fellow of the Royal Society, he has been elected to the membership of the American Academy of Arts and Sciences, the American Physical Society and the Japan Society for the Promotion of Science.