D'Ariano, G. M.Lo Presti, P.2004-12-142004-12-1420012001http://hdl.handle.net/2003/1912010.17877/DE290R-12710enThe American Physical SocietyPhysical Review Letters530Quantum Tomography for Measuring Experimentally the Matrix Elements of an Arbitrary Quantum Operation10.1103/PhysRevLett.86.4195article (journal)