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Your question is rather tautological... You can pick a text book or even an online tutorial. Understanding diagonalization (and more generally, spectral theory
by krastanov 10y ago
Your question is rather tautological... You can pick a text book or even an online tutorial.
Understanding diagonalization (and more generally, spectral theory), scalar products, and norms would be a great start. Then you can pick any quantum information textbook.