674 citations
9 papers · 1 filter
Fast quantum key distribution with decoy number states
Daryl Achilles, Ekaterina Rogacheva, Alexei Trifonov
We investigate the use of photon number states to identify eavesdropping attacks on quantum key distribution (QKD) schemes. The technique is based on the fact that different photon…
From Quantum Cheating to Quantum Security
Daniel Gottesman, Hoi-Kwong Lo
For thousands of years, code-makers and code-breakers have been competing for supremacy. Their arsenals may soon include a powerful new weapon: quantum mechanics. We give an overvi…
Conditional beam splitting attack on quantum key distribution
John Calsamiglia, Stephen M. Barnett, Norbert Lütkenhaus
We present a novel attack on quantum key distribution based on the idea of adaptive absorption [calsam01]. The conditional beam splitting attack is shown to be much more efficient…
Removal of a single photon by adaptive absorption
John Calsamiglia, Stephen M. Barnett, Norbert Lütkenhaus +1
We present a method to remove, using only linear optics, exactly one photon from a field-mode. This is achieved by putting the system in contact with an absorbing environment which…
Proof of security of quantum key distribution with two-way classical communications
Daniel Gottesman, Hoi-Kwong Lo
Shor and Preskill have provided a simple proof of security of the standard quantum key distribution scheme by Bennett and Brassard (BB84) by demonstrating a connection between key…
Proof of unconditional security of six-state quantum key distribution scheme
Hoi-Kwong Lo
We prove the unconditional security of the standard six-state scheme for quantum key distribution (QKD). We demonstrate its unconditional security up to a bit error rate of 12.7 pe…