Recent content by nordinz

I am referring actually to approximate quantum cloning, not exact quantum cloning. See for example, http://arxiv.org/PS_cache/quant-ph/pdf/0511/0511088v1.pdf.

Hi, I have a question with regard to the outcome of approximate quantum cloning: For a general input state, it will always be entangled, right? Let s = a|0> + b|1> Then using say a Wootters-Zurek copying machine, we have: |s>|Q> -> a|0>|0>|Q_0> + b|1>|1>|Q_1> I need to perform some...