Appelbaum, Ian ; Joannopoulos, J. D. ; Narayanamurti, V. (2002) Alternative paradigm for physical computing Physical Review E, 66 (6). 066612_1-066612_4. ISSN 1063-651X
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Official URL: http://link.aps.org/doi/10.1103/PhysRevE.66.066612
Related URL: http://dx.doi.org/10.1103/PhysRevE.66.066612
Abstract
We identify a different class of physical systems that are able to form universal logic gates. By analogy with Si(100) surface dimers, we present a model to analyze the trajectories of the fixed points (interpreted as logic states) under variation of the basic parameters. Using the perspective of catastrophe theory, we show that information processing is the result of cycling the parameters of such systems through a path containing a cusp-type catastrophe. We apply this analysis to the construction of an example based on magnetic memory.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 30634 |
| Deposited On: | 23 Dec 2010 12:59 |
| Last Modified: | 11 Jun 2011 06:43 |
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