Production of entanglement in Raman three-level systems using feedback

被引：13

作者：

Stevenson, R. N. ^{[1
]}

Carvalho, A. R. R. ^{[1
]}

Hope, J. J. ^{[1
]}

机构：

[1] Australian Natl Univ, Dept Quantum Sci, Res Sch Phys & Engn, Australian Ctr Quantum Atom Opt, Canberra, ACT 0200, Australia

来源：

EUROPEAN PHYSICAL JOURNAL D | 2011年 / 61卷 / 02期

关键词：

MULTIPARTICLE ENTANGLEMENT; QUANTUM-THEORY; STATE;

D O I：

10.1140/epjd/e2010-10442-2

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We examine the theoretical limits of the generation of entanglement in a damped coupled ion-cavity system using jump-based feedback. Using Raman transitions to produce entanglement between ground states reduces the necessary feedback bandwidth, but does not improve the overall effect of the spontaneous emission on the final entanglement. We find that the fidelity of the resulting entanglement will be limited by the asymmetries produced by vibrations in the trap, but that the concurrence remains above 0.88 for realistic ion trap sizes.

引用

页码：523 / 529

页数：7

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