News and Views
Nature Physics 5, 711 - 712 (2009)
doi:10.1038/nphys1401
Subject Category: Quantum physics
Entanglement: Entangled and bound
Antonio Acín1
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Antonio Acín is at ICFO - Institut de Ciències Fotòniques, Parc Mediterrani de la Tecnologia, 08860 Barcelona, Spain.
e-mail: Antonio.Acin@icfo.es
Abstract
Bound entanglement represents an irreversible form of quantum correlation: bound-entangled states require entanglement for their preparation, but no pure-state entanglement can be extracted from them. A recent experiment reports the first experimental realization of a bound-entangled state.
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