Abstract
The backbone in a continuum system of diodes is determined by applying the conjecture that in directed percolation the backbone is the collection of diodes which belong to the source-to-drain percolating cluster, as well as to the reversed drain-to-source percolating cluster. Obtaining the backbone enables us to apply our systematic resistance-computation procedure, which has been previously used for nondirected percolating systems. We suggest then a method which is based on a more systematic, more general, and more direct procedure than those used previously for the directed-percolation problem. We also find that this method yields a more accurate value for the conductivity critical exponent t=0.63 0.05.
Original language | English |
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Pages (from-to) | 2017-2019 |
Number of pages | 3 |
Journal | Physical Review B |
Volume | 33 |
Issue number | 3 |
DOIs | |
State | Published - 1986 |