Physics – Condensed Matter – Superconductivity
Scientific paper
2003-07-23
Physics
Condensed Matter
Superconductivity
5 pages, 3 postscript figures
Scientific paper
We examine a building block for logic devices in which the positions of superconducting vortices in coupled elongated antidots provide the elementary logic states of 0 and 1. We show analytically and through simulation the maximum operating frequency of a pair of antidots as a function of antidot spacing and elongation. At finite temperatures, a signal can propagate through a series of identically shaped antidots with correctly chosen spacing, with an exponential distribution of switching times for the signal to move over by one antidot.
Janko Boldizsar
Olson Reichhardt C. J.
Reichhardt Charles
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