From: scerir (scerir@libero.it)
Date: Thu Oct 24 2002 - 10:47:29 MDT
> Sure. However it is not possible for two objects to exist in the same
> quantum state in the first place, as per the Pauli Exclusion Principle.
> -gts
In QM no information can be cloned (xoxed)if
the number of states is equal or greater than 3
[Wootters, Zurek, 1982].
Or, in other terms, a cloning (xoxing) of 2 non
orthogonal states violates the unitarity of evolution
[D'Ariano, Yuen, 1996].
Or, in other terms, the linearity in QM (linear
superposition of quantum states) forbids the
perfect xoxing. Fortunately! Leibniz principle!
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