Broadcasting of entanglement via local copying
Open Access
- 1 May 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 55 (5) , 3327-3332
- https://doi.org/10.1103/physreva.55.3327
Abstract
We show that inseparability of quantum states can be partially broadcasted (copied or 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.Keywords
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