Simultaneous minimum-uncertainty measurement of discrete-valued complementary observables

Details Simultaneous minimum-uncertainty measurement of discrete-valued complementary observables Simultaneous minimum-uncertainty measurement of discrete-valued complementary observables

2000-12-22

arxiv.org/abs/quant-ph/0012124v1

Phys. Rev. Lett. 86 (2001) 4423-4426

Physics

Quantum Physics

4 pages, 4 figures, REVTeX, submitted to PRL

Scientific paper

10.1103/PhysRevLett.86.4423

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.

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