Quantum cloning with nonlocal assistance: Complement of Jozsa's stronger no-cloning theorem

Details Quantum cloning with nonlocal assistance: Complement of Jozsa's stronger no-cloning theorem Quantum cloning with nonlocal assistance: Complement of Jozsa's stronger no-cloning theorem

2006-04-03

arxiv.org/abs/quant-ph/0604009v1

Physics

Quantum Physics

4 pages, 1 figure

Scientific paper

We investigate the cases where a set $S$ of states $\{\ket{\psi_i} \}$ cannot be cloned by itself, but is clonable with the help of another system prepared in state $\hat{\rho}_i$. When $S$ is pair-wise nonorthogonal, it is known that one can generate the copy from $\hat{\rho}_i$ alone, with no interaction with the original system. Here we show that a set containing orthogonal pairs exhibits a property forming a striking contrast; For any such set, there is a choice of $\hat{\rho}_i$ that enables cloning only when the two systems are interacted in a purely quantum manner that is not achievable via classical communication.

Affiliated with

Also associated with

No associations

Rating

Quantum cloning with nonlocal assistance: Complement of Jozsa's stronger no-cloning theorem does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quantum cloning with nonlocal assistance: Complement of Jozsa's stronger no-cloning theorem, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum cloning with nonlocal assistance: Complement of Jozsa's stronger no-cloning theorem will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-444381