| 利用超导量子干涉仪制备N比特团簇态 |
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| 引用本文： | 唐世清,张登玉,汪新文,刘韵丹,高峰.利用超导量子干涉仪制备N比特团簇态[J].衡阳师范学院学报,2010,31(6). |
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| 作者姓名： | 唐世清 张登玉 汪新文 刘韵丹 高峰 |
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| 作者单位： | 衡阳师范学院物理与电子信息科学系; |
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| 基金项目： | National Natural Science Foundation of China，Scientific Research Fund of Hunan Provincial Education Department of China，Science and Technology Research Foundation of Hunan Province of China，Science Foundation of Hengyang Normal University of China |
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| 摘 要： | 利用两个超导量子干涉仪与腔场的相互作用,提出一种实现标准两比特量子相位门的方案.利用构造的两比特相位门,还提出了一种制备N比特团簇态的方案.在此方案中,量子信息被编码在两个超导量子干涉仪的相对稳定的基态上.在两个超导量子干涉仪与单模腔场的相互作用过程中,由于超导量子干涉比特的激发态被绝热地消去,激发态所引起的消相干得到了有效的抑制.此外,还讨论方案的实验可行性.
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| 关 键 词： | 团簇态 标准量子相位门 超导量子干涉仪 腔QED |
Generation of an N-qubit cluster state via superconducting quantum interference devices |
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| TANG Shi-qing,ZHANG Deng-yu,WANG Xin-wen,LIU Yun-dan,GAO Feng.Generation of an N-qubit cluster state via superconducting quantum interference devices[J].journal of Hengyang Normal University,2010,31(6). |
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| Authors: | TANG Shi-qing ZHANG Deng-yu WANG Xin-wen LIU Yun-dan GAO Feng |
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| Institution: | TANG Shi-qing,ZHANG Deng-yu,WANG Xin-wen,LIU Yun-dan,GAO Feng(Department of Physics and Electronic Information Science,Hengyang Normal University,Hengyang Hunan 421008,Chin |
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| Abstract: | We propose a model to implement the standard two-qubit quantum phase gate via a large detuned interaction of two superconducting quantum interference devices (SQUIDs) with a single-mode vacuum cavity-field. With the constructed phase gate, a scheme for generating an N-qubit cluster state is also presented. In our protocol, the quantum information is encoded in the ground states of two rf SQUIDs. During the interaction between the rf SQUIDs and the single-mode vacuum cavity-field, the effect of decoherence caused from the upper levels of the SQUID system is negligible due to fact that the excited states of the rf SQUIDs are adiabatically eliminated under large detuning condition. The experimental feasibility of the schemes is also discussed. |
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| Keywords: | cluster state standard quantum phase gate superconducting quantum interference devices cavity quantum electrodynamics |
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