par Mitchison, Graeme;Massar, Serge 
;Pironio, Stefano
Référence Physical review. A, Atomic, Molecular, and Optical Physics, 65, 2, 022110
Publication Publié, 2002-02
;Pironio, Stefano Référence Physical review. A, Atomic, Molecular, and Optical Physics, 65, 2, 022110
Publication Publié, 2002-02
Article révisé par les pairs
| Résumé : | The problem of distinguishing two transparencies is addressed. In view of this, a bound on the minimum number of photons that must be absorbed by any quantum protocol is given. The bound is interesting in that it spans the entire range from almost identical transparencies to "interaction-free" measurement. |
