A Singlet State Generated with SQUIDs in Cavity QED
A Singlet State Generated with SQUIDs in Cavity QED
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DOI：
10.1088/0253-6102/54/6/09
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发表时间：
2010-12
影响因子：
3.1
通讯作者：
Lin Xie;Li-Bo Chen;Y. Gu
中科院分区：
文献类型：
--
作者：
Lin Xie;Li-Bo Chen;Y. Gu
我们提出了一种方案，通过将三个 A 型 SQUID 放置在单模腔中，在腔 QED 中生成三量子三能级单重态。在这个方案中，我们利用了 SQUID 和腔场以及经典脉冲之间的相互作用。在产生纠缠的整个操作过程中，腔场处于真空状态，SQUID与腔场之间不存在量子信息转换。由于SQUID腔体系统的优点，腔体的品质因数大大放宽。
We propose a scheme to generate a three-quhit three-level singlet state in cavity QED, by placing three A-type SQUIDs in a single mode cavity. In this scheme, we make use of the interaction between the SQUIDs and cavity filed, and the classical pulses. The cavity fields are in vacuum state during the whole operation processes of creating the entanglement, and there is no quantum information transformation between the SQUIDs and cavity fields. Because of the advantage of the SQUID-cavity system, the quality factor of the cavity is greatly relaxed.