Title :
A concentration/purification scheme for two partially entangled photon pairs
Author :
Yamamoto, T. ; Koashi, M. ; Imoto, N.
Author_Institution :
Sch. of Adv. Sci., Graduate Univ. for Adv. Studies, Kanagawa, Japan
Abstract :
An experimental scheme for concentrating entanglement in partially entangled photon pairs is proposed. A practical realization of the proposed scheme is discussed, which uses imperfect photon detectors and spontaneous parametric down-conversion as a photon source. This scheme also works for purifying a class of mixed states.
Keywords :
optical communication; optical frequency conversion; photon counting; quantum cryptography; concentration/purification scheme; imperfect photon detectors; mixed states; partially entangled photon pairs; photon source; spontaneous parametric down-conversion; Detectors; Optical polarization; Optical retarders; Photonics; Purification; Quantum entanglement;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO/Pacific Rim 2001. The 4th Pacific Rim Conference on
Conference_Location :
Chiba, Japan
Print_ISBN :
0-7803-6738-3
DOI :
10.1109/CLEOPR.2001.971011
