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Humboldt-Universität zu Berlin - Mathematisch-Naturwissen­schaft­liche Fakultät - Nanooptik

Humboldt-Universität zu Berlin | Mathematisch-Naturwissen­schaft­liche Fakultät | Institut für Physik | Nanooptik | Publications | Experimental optimal maximum-confidence discrimination and optimal unambiguous discrimination of two mixed single-photon states

Gesine A Steudle, Sebastian Knauer, Ulrike Herzog, Erik Stock, Vladimir A Haisler, Dieter Bimberg, and Oliver Benson (2011)

Experimental optimal maximum-confidence discrimination and optimal unambiguous discrimination of two mixed single-photon states

Physical Review A, 83(5):050304(R).

We present an experimental implementation of optimum measurements for quantum state discrimination. Optimum maximum-confidence discrimination and optimum unambiguous discrimination of two mixed single-photon polarization states were performed. For the latter the states of rank 2 in a four-dimensional Hilbert space are prepared using both path and polarization encoding. Linear optics and single photons from a true single-photon source based on a semiconductor quantum dot are utilized.