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cianfa72

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- About the difference between Qbit quantum pure vs mixed states

According to this Wikipedia entry a quantum pure qbit state is a ray in the Hilbert space ##\mathbb H_2## of dimension 2. In other words a qbit pure quantum state is a point in the Hilbert projective line.

Now my question: is an arbitrary vector in ##\mathbb H_2## actually a "mixed" state for the qbit ? Thanks.

Now my question: is an arbitrary vector in ##\mathbb H_2## actually a "mixed" state for the qbit ? Thanks.

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