- #1

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[itex]|\psi \rangle=\alpha|H_A H_B\rangle+\beta|V_A V_B\rangle[/itex] where [itex]|\alpha|\neq |\beta|[/itex]

It is between pure entangled state and a classical state like [itex]\psi \rangle=|H_A H_B\rangle[/itex], but it is not mixture of the two either. So it seems that it can not be represented by vector in some state space and it can not be represented by some combination (mixture) of vectors.

I don't know how to think about it using vectors. Any help?