Question: Let 120) ==== ( cos(0) e sin(0) be a normalized state in C. Is p = |) (4] a density matrix? (20)

Let 120) ==== ( cos(0) e sin(0) be a normalized state in

Let 120) ==== ( cos(0) e sin(0) be a normalized state in C. Is p = |) (4] a density matrix? (20)

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