Distilling a Greenberger-Horne-Zeilinger State From an Arbitrary Pure State of Three Qubits

Details Distilling a Greenberger-Horne-Zeilinger State From an Arbitrary Pure State of Three Qubits Distilling a Greenberger-Horne-Zeilinger State From an Arbitrary Pure State of Three Qubits

2000-12-05

arxiv.org/abs/quant-ph/0012022v1

Physics

Quantum Physics

5 pages, Latex file

Scientific paper

We present a general algorithm to achieve local operators which can produce the GHZ state for an arbitrary given three-qubit state. Thus the distillation process of the state can be realized optimally. The algorithm is shown to be sufficient for the three-qubit state on account of the fact that any state for which this distillation algorithm is invalid cannot be distilled to the GHZ state by any local actions. Moreover, an analytical result of distillation operations is achieved for the general state of three qubits.

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