Q3. Given the density operator p =+z)(+z] +-z(-z\, %3D (i) Construct the density matrix. (ii) Is this a density operator for a pure or a mixed state? Why? (iii) Find (S,), (S,) and ($2) for this state.

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Q3. Given the density operator i =+z)(+z[ + l-zX-z1,
(i) Construct the density matrix.
(ii) Is this a density operator for a pure or a mixed state? Why?
(iii) Find (S), (Sy) and ($2) for this state.
Transcribed Image Text:Q3. Given the density operator i =+z)(+z[ + l-zX-z1, (i) Construct the density matrix. (ii) Is this a density operator for a pure or a mixed state? Why? (iii) Find (S), (Sy) and ($2) for this state.
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