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Quantum-chaotic cryptography

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Abstract

In this work, it is presented an optical scheme for quantum key distribution employing two synchronized optoelectronic oscillators (OEO) working in the chaotic regime. The produced key depends on the chaotic dynamic, and the synchronization between Alice’s and Bob’s OEOs uses quantum states. An attack on the synchronization signals will disturb the synchronization of the chaotic systems increasing the error rate in the final key.

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Acknowledgements

This work was supported by the Brazilian agency CNPq via Grant No. 307062/2014-7. Also, this work was performed as part of the Brazilian National Institute of Science and Technology for Quantum Information.

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  1. Laboratory of Quantum Information Technology, Department of Teleinformatic Engineering, Federal University of Ceara, DETI/UFC, C.P. 6007, Campus do Pici, 60455-970, Fortaleza, CE, Brazil

    G. L. de Oliveira & R. V. Ramos

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  1. G. L. de Oliveira
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  2. R. V. Ramos
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Correspondence to R. V. Ramos.

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de Oliveira, G.L., Ramos, R.V. Quantum-chaotic cryptography. Quantum Inf Process 17, 40 (2018). https://doi.org/10.1007/s11128-017-1765-x

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