Representing information – David Miller

See https://web.stanford.edu/group/dabmgroup/cgi-bin/dabm/teaching/quantum-mechanics/ for links to all videos, slides, FAQs, and complete open online quantum classes. Lecture 49a of Quantum Mechanics for Scientists and Engineers Part of Lecture 49 Quantum measurements and encryption Text reference: Chapter 18 introduction, QMSE QMSE - D. A. B. Miller, Quantum Mechanics for Scientists and Engineers (Cambridge)