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arXiv:1311.7318 · Quantum Information Processing

Three-particle hyper-entanglement: teleportation and quantum key distribution

Chithrabhanu Perumangatt, Abdul Rahim Aadhi, GANGIREDDY SALLA, Shashi Prabhakar, G. K. Samanta, Goutam Paul, Ravindra Pratap Singh

Published Jul 15, 2015• 13 citations
arXivHTMLPDF
DOI
10.1007/s11128-015-1056-3

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We describe the development of a quantum key distribution (QKD) scheme based on ultrafast laser pumped sources of entangled photon pairs and the engineering of their entanglement properties. Though quantum entanglement has been shown to be a useful resource for quantum key distribution, little work has been carried out in making use of the full range of joint entanglement behavior present in hyper-entangled photon pairs. We consider the principal advantages of our QKD scheme in connection with the way it makes use of ultrafast laser pumped spontaneous parametric down-conversion and hyper-entanglement. In particular, we consider how polarization quantum interference may be modified by manipulating the spatial features of the down-converted light.