2000/12/22 by Alexei Trifonov, Gunnar Bjork, Jonas Soderholm
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1103/physrevlett.86.4423
published as Phys. Rev. Lett. 86 (2001) 4423-4426 · 4 pages, 4 figures, REVTeX, submitted to PRL
arxiv created 2000/12/22 · arxiv updated 2009/12/01
We have made the first experimental demonstration of the simultaneous minimum uncertainty product between two complementary observables for a two-state system (a qubit). A partially entangled two-photon state was used to perform such measurements. Each of the photons carries (partial) information of the initial state thus leaving a room for measurements of two complementary observables on every member in an ensemble.