Two-way Protocol for Quantum Cryptography with Imperfect Devices

Details Two-way Protocol for Quantum Cryptography with Imperfect Devices Two-way Protocol for Quantum Cryptography with Imperfect Devices

2006-05-11

arxiv.org/abs/quant-ph/0605106v1

Open Syst. Inf. Dyn. 14, 169-178 (2007)

Physics

Quantum Physics

10 pages, 3 figures. Uses OSID style

Scientific paper

The security of a deterministic quantum scheme for communication, namely the
LM05 [1], is studied in presence of a lossy channel under the assumption of
imperfect generation and detection of single photons. It is shown that the
scheme allows for a rate of distillable secure bits higher than that pertaining
to BB84 [2]. We report on a first implementation of LM05 with weak pulses.

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