Resilience of singlet-state extraction against non-optimal resonance conditions

被引:7
作者
Ciccarello, Francesco [1 ,2 ,3 ]
Paternostro, M. [3 ]
Kim, M. S. [3 ]
Palma, G. M. [4 ,5 ]
机构
[1] Univ Palermo, CNISM, I-90128 Palermo, Italy
[2] Univ Palermo, Dipartimento Fis & Tecnol Relat, I-90128 Palermo, Italy
[3] Queens Univ Belfast, Sch Math & Phys, Belfast BT7 1NN, Antrim, North Ireland
[4] Univ Palermo, NEST, INFM, CNR, I-90123 Palermo, Italy
[5] Univ Palermo, Dipartimento Sci Fis & Astron, I-90123 Palermo, Italy
关键词
entanglement generation; manipulation;
D O I
10.1142/S0219749908004079
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
We have recently presented a protocol for extracting the singlet state of two non-interacting high-dimensional spins through post-selection of the internal state of interaction mediators sent in succession [F. Ciccarello et al., arXiv:0710.3855v1]. The scheme requires each mediator's wavevector to obey appropriate resonance conditions. Here we show the robustness of the scheme in the realistic case where such conditions are not sharply fulfilled.
引用
收藏
页码:759 / 764
页数:6
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