Splitting of quantum information using N-qubit linear cluster states

Details Splitting of quantum information using N-qubit linear cluster states Splitting of quantum information using N-qubit linear cluster states

2009-04-03

arxiv.org/abs/0904.0563v3

Physics

Quantum Physics

Updated version

Scientific paper

We provide a number of schemes for the splitting up of quantum information among $k$ parties using a $N$-qubit linear cluster state as a quantum channel, such that the original information can be reconstructed only if all the parties cooperate. Explicit circuits are provided for these schemes, which are based on the concept of measurement based locking and unlocking of quantum information. These are experimentally feasible as they require measurements to be performed only on product basis.

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