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(Solved): 3. (6 points) Consider the 3-qubit state, \[ |\psi\rangle=\frac{1}{\sqrt{8}}(|0\rangle+|1\rangle+\ ...



3. (6 points) Consider the 3-qubit state,
\[
|\psi\rangle=\frac{1}{\sqrt{8}}(|0\rangle+|1\rangle+\cdots+|7\rangle) \text {. }

3. (6 points) Consider the 3-qubit state, \[ |\psi\rangle=\frac{1}{\sqrt{8}}(|0\rangle+|1\rangle+\cdots+|7\rangle) \text {. } \] Let \( V \) be the operator \[ V=(I-2|3\rangle\langle 3|) \] Calculate \( V|\psi\rangle \)


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3- qubit state ??>=18[|0>+|1>+|2>+|3>
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