Detector-device-independent quantum key distribution
Recently, a quantum key distribution (QKD) scheme based on entanglement swapping, called measurement-device-independent QKD (mdiQKD), was proposed to bypass all measurement side-channel attacks. While mdiQKD is conceptually elegant and offers a supreme level of security, the experimental complexity...
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| Veröffentlicht in: | Applied physics letters 2014-12, Vol.105 (22) |
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| container_title | Applied physics letters |
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| creator | Lim, Charles Ci Wen Korzh, Boris Martin, Anthony Bussières, Félix Thew, Rob Zbinden, Hugo |
| description | Recently, a quantum key distribution (QKD) scheme based on entanglement swapping, called measurement-device-independent QKD (mdiQKD), was proposed to bypass all measurement side-channel attacks. While mdiQKD is conceptually elegant and offers a supreme level of security, the experimental complexity is challenging for practical systems. For instance, it requires interference between two widely separated independent single-photon sources, and the secret key rates are dependent on detecting two photons—one from each source. Here, we demonstrate a proof-of-principle experiment of a QKD scheme that removes the need for a two-photon system and instead uses the idea of a two-qubit single-photon to significantly simplify the implementation and improve the efficiency of mdiQKD in several aspects. |
| doi_str_mv | 10.1063/1.4903350 |
| format | Article |
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| ispartof | Applied physics letters, 2014-12, Vol.105 (22) |
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| language | eng |
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| source | American Institute of Physics (AIP) Journals; Alma/SFX Local Collection |
| subjects | Applied physics CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS EFFICIENCY INTERFERENCE PHOTONS Quantum cryptography QUANTUM ENTANGLEMENT QUBITS Qubits (quantum computing) |
| title | Detector-device-independent quantum key distribution |
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