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

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 si...

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Bibliographic Details
Published inOptoelectronics letters Vol. 8; no. 1; pp. 63 - 66
Main Author 李慧 李春文 姜敏
Format Journal Article
LanguageEnglish
Published Heidelberg Tianjin University of Technology 2012
Subjects
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
可编程
消相干
量子力学
量子态
量子比特
量子逻辑门
隐形传输
非最大纠缠态
Unitary Transformation
Quantum Gate
Quantum Circuit
Parallel Connection
Control Qubit
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ISSN1673-1905
1993-5013
DOI10.1007/s11801-012-1035-1

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Summary: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.
Bibliography:12-1370/TN
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.
ISSN:1673-1905
1993-5013
DOI:10.1007/s11801-012-1035-1