Experimental realization of optimal detection strategies for overcomplete states
Quantum Physics
2009-11-06 v2
Abstract
We present the results of generalized measurements of optical polarization designed to provide one of three or four distinct outcomes. This has allowed us to discriminate between nonorthogonal polarization states with an error probability that is close to the minimum allowed by quantum theory. Employing these optimal detection strategies on sets of three (trine) or four (tetrad) equiprobable symmetric nonorthogonal polarization states, we obtain a mutual information that exceeds the maximum value attainable using conventional (von Neumann) polarization measurements.
Keywords
Cite
@article{arxiv.quant-ph/0008028,
title = {Experimental realization of optimal detection strategies for overcomplete states},
author = {Roger B. M. Clarke and Vivien M. Kendon and Anthony Chefles and Stephen M. Barnett and Erling Riis and Masahide Sasaki},
journal= {arXiv preprint arXiv:quant-ph/0008028},
year = {2009}
}
Comments
RevTeX4, 14 pages, 10 figures (included as eps), submitted to Phys. Rev. A. Typos corrected, Sec II B rewritten, no changes to results or conclusions