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I review the ideas and main results in the derivation of security bounds in quantum key distribution for keys of finite length. In particular, all the detailed studies on specific protocols and imple...
Signal Enhancement and Background Suppression Using Interference and Entanglement
Signal Enhancement Background Suppression
2010/3/10
We describe a two-photon absorption process that is excited by entangled pairs but not non-entangled pairs with the same energy and polarization. Photon states can be selected so that in the non-entan...