On the experimental feasibility of continuous-variable optical entanglement distillation

被引:8
作者
Eisert, J. [1 ]
Plenio, M. B.
Browne, D. E.
Scheel, S.
Feito, A.
机构
[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, QOLS, London SW7 2BW, England
[2] Univ London Imperial Coll Sci Technol & Med, Inst Math Sci, London SW7 2PE, England
[3] Univ Oxford, Dept Mat, Oxford OX1 3PH, England
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1134/S0030400X07080012
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Entanglement distillation aims at preparing highly entangled states out of a supply of weakly entangled pairs, using local devices and classical communication only. In this note we discuss the experimentally feasible schemes for optical continuous-variable entanglement distillation that have been presented in [D.E. Browne, J. Eisert, S. Scheel, and M.B. Plenio, Phys. Rev. A 67, 062320 (2003)] and [J. Eisert, D.E. Browne, S. Scheel, and M.B. Plenio, Annals of Physics (NY) 311, 431 (2004)]. We emphasize their versatility in particular with regards to the detection process and discuss the merits of the two proposed detection schemes, namely photo-detection and homodyne detection, in the light of experimental realizations of this idea becoming more and more feasible.
引用
收藏
页码:173 / 177
页数:5
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