Randomized Self-Assembly for Exact Shapes

  • Authors:
  • David Doty

  • Affiliations:
  • -

  • Venue:
  • FOCS '09 Proceedings of the 2009 50th Annual IEEE Symposium on Foundations of Computer Science
  • Year:
  • 2009

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Abstract

Working in Winfree's abstract tile assembly model, we show that a constant-size tile assembly system can be programmed through relative tile concentrations to build an n x n square with high probability, for any sufficiently large n. This answers an open question of Kao and Schweller (Randomized Self-Assembly for Approximate Shapes, ICALP 2008), who showed how to build an *approximately* n x n square using tile concentration programming, and asked whether the approximation could be made *exact* with high probability.