Noise in the wire: the real impact of wire resistance for the Johnson (-like) noise based secure communicator

Details Noise in the wire: the real impact of wire resistance for the Johnson (-like) noise based secure communicator Noise in the wire: the real impact of wire resistance for the Johnson (-like) noise based secure communicator

2010-01-30

arxiv.org/abs/1002.0087v2

Physics Letters A 374 (2010) 2140-2142

Physics

Classical Physics

Accepted for publication in Physics Letters A, on March 10, 2010

Scientific paper

10.1016/j.physleta.2010.03.021

We re-evaluate the impact of wire resistance on the noise voltage and current in the Johnson-(like)-noise based secure communicator, correcting the result presented in [Physics Letters A 359 (2006) 737]. The analysis shown here is based on the fluctuation-dissipation and the linear response theorems. The results indicate that the impact of wire resistance in practical communicators is significantly lower than the previous estimation.

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