| Literature DB >> 11800863 |
G M D'Ariano1, P Lo Presti, M G Paris.
Abstract
We show how entanglement can be used to improve the estimation of an unknown transformation. Using entanglement is always of benefit in improving either the precision or the stability of the measurement. Examples relevant for applications are illustrated, for either qubits or continuous variables.Year: 2001 PMID： 11800863 DOI： 10.1103/PhysRevLett.87.270404
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161