These lecture notes may be used and distributed freely, for individual study or by course instructors. They may not be sold.
These are rather old lecture notes for the course CS 766/QIC 820 Theory of Quantum Information, taught at the University of Waterloo in odd-numbered fall terms (2011, 2013, … , 2021). They are not currently being maintained (although I do hope to update them in the future), and I believe that everything of value that they cover is done better in my book The Theory of Quantum Information. I encourage you to use that resource instead, but have made these notes available for those that prefer them or wish to examine how different topics are covered lecture by lecture.
Latest update: December 1, 2011