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Intercept-resend attacks in the Bennett-Brassard 1984 quantum key distribution protocol with weak coherent pulses
Marcos Curty, Norbert Lütkenhaus
Unconditional security proofs of the Bennett-Brassard protocol of quantum key distribution have been obtained recently. These proofs cover also practical implementations that utili…
Implementation of projective measurements with linear optics and continuous photon counting
Masahiro Takeoka, Masahide Sasaki, Peter van Loock +1
We investigate the possibility of implementing a given projection measurement using linear optics and arbitrarily fast feedforward based on the continuous detection of photons. In…
Detecting two-party quantum correlations in quantum key distribution protocols
Marcos Curty, Otfried Gühne, Maciej Lewenstein +1
A necessary precondition for secure quantum key distribution (QKD) is that sender and receiver can prove the presence of entanglement in a quantum state that is effectively distrib…