Security of Distributed-Phase-Reference Quantum Key Distribution
Physical Review Letters 109(26)
Article 2012 English
Authors
TM
Tobias Moroder
MC
Marcos Curty
CL
Charles Ci Wen Lim
Abstract
1 min read
Distributed-phase-reference quantum key distribution stands out for its easy implementation with present day technology. Since many years, a full security proof of these schemes in a realistic setting has been elusive. For the first time, we solve this long standing problem and present a generic method to prove the security of such protocols against general attacks. To illustrate our result we provide lower bounds on the key generation rate of a variant of the coherent-one-way quantum key distribution protocol. In contrast to standard predictions, it appears to scale quadratically with the system transmittance.
Discussion(0)
No comments yet. Be the first to comment.