Preparation of a stable and maximally entangled state of two distant qutrits trapped in separate cavities
Preparation of a stable and maximally entangled state of two distant qutrits trapped in separate cavities
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DOI：
10.1140/epjd/e2008-00047-9
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发表时间：
2008-03
期刊：
影响因子：
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通讯作者：
C.-s. Yu;X. Yi;H. Song;D. Mei
中科院分区：
文献类型：
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作者：
C.-s. Yu;X. Yi;H. Song;D. Mei
我们提出了一种简单的方案来纠缠被困在单独的光学腔中的两个遥远的四粒子。每个量子体的量子信息被巧妙地编码在一对原子的简并基态上，因此它们之间的纠缠对于自发发射来说相对稳定。在Lamb-Dicke极限下，不需要重合检测，这将放宽实验实现的条件。该方案对于低效检测具有鲁棒性。
We have proposed a simple scheme to entangle two distant qutrits trapped in separate optical cavities. The quantum information of each qutrit is skillfully encoded on the degenerate ground states of a pair of atoms, hence the entanglement between them is relatively stable against spontaneous emission. In Lamb-Dicke limits, it is not necessary to require coincidence detections, which will relax the conditions for the experimental realization. The scheme is robust against the inefficient detections.