Document Type
Conference Proceeding
Publication Date
1-2013
Abstract
In this paper we show that passive self-assembly in the context of the tile self-assembly model is capable of performing fuel efficient, universal computation. The tile self-assembly model is a premiere model of self-assembly in which particles are modeled by four-sided squares with glue types assigned to each tile edge. The assembly process is driven by positive and negative force interactions between glue types, allowing for tile assemblies floating in the plane to combine and break apart over time. We refer to this type of assembly model as passive in that the constituent parts remain unchanged throughout the assembly process regardless of their interactions. A computationally universal system is said to be fuel efficient if the number of tiles used up per computation step is bounded by a constant. Work within this model has shown how fuel guzzling tile systems can perform universal computation with only positive strength glue interactions [33]. Recent work has introduced space-efficient, fuel-guzzling universal computation with the addition of negative glue interactions and the use of a powerful non-diagonal class of glue interactions [20]. Other recent work has shown how to achieve fuel efficient computation [28] within active tile self-assembly. In this paper we utilize negative interactions in the tile self-assembly model to achieve the first computationally universal passive tile self-assembly system that is both space and fuel-efficient. In addition, we achieve this result using a limited diagonal class of glue interactions.
Recommended Citation
Schweller, R., & Sherman, M. (2013). Fuel Efficient Computation in Passive Self-Assembly. Proceedings of the 2013 Annual ACM-SIAM Symposium on Discrete Algorithms, 1513–1525. https://doi.org/10.1137/1.9781611973105.109
First Page
1513
Last Page
1525
Publication Title
Proceedings of the Twenty-Fourth Annual ACM-SIAM Symposium on Discrete Algorithms
DOI
10.1137/1.9781611973105.109
Comments
© 2013, SIAM. Original published version available at https://doi.org/10.1137/1.9781611973105.109