Abstract
We propose a quantum key distribution protocol based on a quantum retrodiction protocol, known as the Mean King problem. The protocol uses a two way quantum channel. We show security against coherent attacks in a transmission-error free scenario, even if Eve is allowed to attack both transmissions. This establishes a connection between retrodiction and key distribution.
Original language | English |
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Article number | 220504 |
Journal | Physical Review Letters |
Volume | 103 |
Issue number | 22 |
ISSN | 0031-9007 |
DOIs | |
Publication status | Published - 25 Nov 2009 |