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arXiv · quant-ph/9701028

Broadcasting of entanglement via local copying

V. Buzek·V. Vedral·M. B. Plenio·P. L. Knight·M. Hillery
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Abstract

We show that inseparability of quantum states can be partially broadcasted (copied, cloned) with the help of local operations, i.e. distant parties sharing an entangled pair of spin 1/2 states can generate two pairs of partially nonlocally entangled states using only local operations. This procedure can be viewed as an inversion of quantum purification procedures.

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V. Buzek, V. Vedral, M. B. Plenio, P. L. Knight, M. Hillery. 1997-01-23. Broadcasting of entanglement via local copying. https://doi.org/10.1103/physreva.55.3327

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