Horodecki, K;
Leung, D;
Lo, HK;
Oppenheim, J;
(2006)
Quantum key distribution based on arbitrarily weak distillable entangled states.
Physical review letters
, 96
, Article 7. 10.1103/PhysRevLett.96.070501.
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Abstract
States with private correlations but little or no distillable entanglement were recently reported. Here, we consider the secure distribution of such states, i.e., the situation when an adversary gives two parties such states and they have to verify privacy. We present a protocol which enables the parties to extract from such untrusted states an arbitrarily long and secure key, even though the amount of distillable entanglement of the untrusted states can be arbitrarily small.
| Type: | Article |
|---|---|
| Title: | Quantum key distribution based on arbitrarily weak distillable entangled states |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.96.070501 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.96.070501 |
| Additional information: | © 2006 The American Physical Society |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1362162 |
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