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arXiv quant-ph/0511242quant-ph
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量子点中量子非破坏Bell态测量及N方GHZ态制备

Quantum Non-Demolition Bell State Measurement and N-party GHZ State Preparation in Quantum Dot

Guo-Ping Guo, Hui Zhang, Guang-Can Guo

摘要:

利用费米子量子比特宇称测量,提出了一种在量子点中实现Bell态的量子非破坏(QND)测量和生成n方GHZ态的方案.与原方案相比,宇称测量前后所需的电子转移可以是非绝热的,这可以加快运算速度,使自旋轨道相互作用的省略更加合理。这有助于我们在不像D.我和戈特斯曼。L.创.

英文摘要:

By exploiting the fermionic qubit parity measurement, we present a scheme to realize quantum non-demolition (QND) measurement of Bell-states and generate n-party GHZ state in quantum dot. Compared with the original protocol, the required electron transfer before and after parity measurement can be nonadiabatic, which may speed up the operation speed and make the omitting of spin-orbit interaction more reasonable. This may help us to construct CNOT gate without highly precise control of coupling as the way of D. Gottesman and I. L. Chuang.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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