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Quantum State Transfer with Tunable Couplings for Superconducting Qubits

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Abstract

Currently, scalability and decoherence are still the two crucial problems for realizing large-scale quantum computation. To transfer information efficiently in the field of quantum computer and quantum communication, we must solve the two problems reasonably. Here, we propose an efficient scheme for the implementation of quantum states transfer in different couplings of superconducting devices, which are coupled weakly over a long distance. It is found that the isotropic Heisenberg coupling can offer the perfect operation for arbitrary states transfer with the shortest time. The scheme is feasible because the couplings have been demonstrated in actual experiments recently.

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Acknowledgements

This work was supported by NSFC under Grant Nos. 11104057, 61073048 and 11005029, the Key Program of the Education Department of Anhui Province under Grant No. KJ2012A245, and the Natural Science Foundation of Anhui Province under Grant No. 10040606Q51, and Foundation of Hefei Normal University under Grant Nos. 2011rcjj04 and 2011jd09.

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Authors and Affiliations

  1. School of Electronic and Information Engineering, Hefei Normal University, Hefei, 230061, China

    Long-Bao Yu, Jun Liu, Ping Dong & Zhuo-Liang Cao

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  1. Long-Bao Yu
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  2. Jun Liu
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  3. Ping Dong
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  4. Zhuo-Liang Cao
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Correspondence to Long-Bao Yu.

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Yu, LB., Liu, J., Dong, P. et al. Quantum State Transfer with Tunable Couplings for Superconducting Qubits. Int J Theor Phys 52, 404–410 (2013). https://doi.org/10.1007/s10773-012-1345-x

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  • DOI: https://doi.org/10.1007/s10773-012-1345-x

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