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

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Abstract

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 (CNOT) 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.

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Authors and Affiliations

  1. Department of Automation, Tsinghua University, Beijing, 100084, China

    Hui Li  (李慧), Chun-wen Li  (李春文) & Min Jiang  (姜敏)

  2. National Laboratory for Information Science and Technology, Center for Quantum Information Science and Technology, Tsinghua University, Beijing, 100084, China

    Hui Li  (李慧) & Chun-wen Li  (李春文)

  3. Department of Electronics and Information, Soochow University, Suzhou, 215021, China

    Min Jiang  (姜敏)

Authors
  1. Hui Li  (李慧)
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  2. Chun-wen Li  (李春文)
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  3. Min Jiang  (姜敏)
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Corresponding author

Correspondence to Hui Li  (李慧).

Additional information

This work has been supported by the National Natural Science Foundation of China (No. 60904034 and 61104002).

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Li, H., Li, Cw. & Jiang, M. Programmable quantum logic gates using teleportation with non-maximally entangled states. Optoelectron. Lett. 8, 63–66 (2012). https://doi.org/10.1007/s11801-012-1035-1

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  • DOI: https://doi.org/10.1007/s11801-012-1035-1

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