arXiv:quant-ph/9910041 · Physical Review A

Measuring the entanglement of bipartite pure states

J. M. G. Sancho, Susana F. Huelga

Published Mar 7, 2000• 55 citations

Abstract

The problem of the experimental determination of the amount of entanglement of a bipartite pure state is addressed. We show that measuring a single observable does not suffice to determine the entanglement of a given unknown pure state of two particles. Possible minimal local measuring strategies are discussed, and a comparison is made on the basis of their best achievable precision.

DOI: 10.1103/physreva.61.042303

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