A Quantum Communication Protocol Transferring Unknown Photons Using Path-Polarization Hybrid Entanglement
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摘要:
An entangled state is one of the main resources in quantum communications.Since the first quantum key distribution using entangled states,[1] it has been used for many information processing protocols.[2-12]These protocols have utilized the properties of entangled states which correlate the individual kinds of degrees of freedom (spin,polarization,etc.) of particles.The experimental implementation and efficiency of quantum communications depend on the experimental ease of implementation and the efficient maintenance of the entangled states.