Open AccessLinear optical realization of universal unambiguous discrimination of quantum state
Author(s) -
Qing Lin
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.5978
Subject(s) - realization (probability) , scheme (mathematics) , photon , quantum cryptography , coincidence , physics , computer science , state (computer science) , quantum mechanics , cryptography , quantum , quantum information , algorithm , mathematics , medicine , mathematical analysis , statistics , alternative medicine , pathology
In this letter, we propose an experimental scheme of universal unambiguous discrimination with only linear optical elements and the coincidence measurements. In addition, a modified scheme is presented to increase the success probability with ancillary photons. This scheme is feasible by current experimental technology and may be used in quantum cryptography.