Programmable quantum logic gates using teleportation with non-maximally entangled states 被引量：1

Programmable quantum logic gates using teleportation with non-maximally entangled states

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摘要 A scheme is proposed for involving programmable quantum logic gates via teleportation,which is a unique technique in quantum mechanics.In our scheme,considering the inevitable decoherence caused by noisy environment,the quantum states are not maximally entangled.We show the implementation of single qubit quantum gates and controlled-NOT(C-NOT) gate,which are universal quantum gates.Hence,any quantum gate can be implemented by using teleportation withnon-maximally entangled states.Furthermore,two schemes in differet connections of universal gates are proposed and compared,and our results show the parallel connection outperforms the cascade connection. A scheme is proposed for involving programmable quantum logic gates via teleportation, which is a unique technique in quantum mechanics. In our scheme, considering the inevitable decoherence caused by noisy environment, the quantum states are not maximally entangled. We show the implementation of single qubit quantum gates and controlled-NOT （C- NOT） gate, which are universal quantum gates. Hence, any quantum gate can be implemented by using teleportation with non-maximally entangled states. Furthermore, two schemes in differet connections of universal gates are proposed and compared, and our results show the parallel connection outperforms the cascade connection.

作者李慧李春文姜敏

机构地区 Department of Automation National Laboratory for Information Science and Technology Department of Electronics and Information

出处《Optoelectronics Letters》 EI 2012年第1期63-66,共4页 光电子快报（英文版）

基金 supported by the National Natural Science Foundation of China(No.60904034 and 61104002)

关键词非最大纠缠态量子逻辑门隐形传输可编程量子力学量子比特量子态消相干 Electric connectors Quantum electronics Quantum entanglement

分类号 O431.2 [机械工程—光学工程]

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