My research is centered on the theory and practice of quantum measurement, and seeks to understand how observers obtain information about quantum systems. This program spans both quantum information theory and the foundations of quantum mechanics, and much of my research has applications in experimental quantum information science. I've written papers on quantum estimation, decoherence, and the structure of quantum states and processes. For the last couple of years, I've been trying to understand the fundamental rules of information transfer and knowledge -- the fruits of which are new results on quantum error correction and quantum data compression.
Sandia National Laboratories