Re-Examination of the Cable Capacitance in the Key Distribution System Using Resistors and Noise Sources

Author:

Liu Pao-Lo1ORCID

Affiliation:

1. Department of Electrical Engineering, University at Buffalo, The State University of New York, Amherst, NY 14260, USA

Abstract

The effect of cable capacitance in the classical key distribution system based on resistors and band-limited noise sources is re-examined. Both the lumped element analysis and the transmission line analysis are performed. As long as the cable capacitance and inductance are fully taken into account, the lumped element analysis and the transmission line analysis generate identical results. When the cable is bootstrapped with a driven shield, the capacitance can be neglected, but the transit time should not be overlooked.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,General Mathematics

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