My area of research is the Physics of Information:
Whichever way information is physically represented in the real world, it is subject to the laws of quantum theory and relativity. In order to describe traditional physical representations of information, such as letters on paper, the laws of classical physics suffice, of course. Research over the past few years has shown, however, that there are dramatic new effects when information is represented or processed on the subatomic level and/or in the presence of strong gravity. Then, the laws of quantum theory (such as the uncertainty principle and entanglement) and effects of relativity (such the finite maximum speed of communication and unpenetrable horizons) possess a very profound impact on the way that information can be represented and processed, both in principle and, eventually, in practice.
For a news release, see here. Here are audio and slides of an introductory lecture that I gave to prospective graduate students at the Fields Institute in November 2004. Concrete projects range from quantum cosmology and quantum computing to data compression (I am holding US patent # 6,531,971) and radar signal design. I am also interested in information theory in biology. In April 2003, I won an Ontario Premier's Research Excellence Award ($150K).