Neuroevolutionary Learning of Particles and Protocols for Self-Assembly.

Journal: Physical review letters
Published Date:

Abstract

Within simulations of molecules deposited on a surface we show that neuroevolutionary learning can design particles and time-dependent protocols to promote self-assembly, without input from physical concepts such as thermal equilibrium or mechanical stability and without prior knowledge of candidate or competing structures. The learning algorithm is capable of both directed and exploratory design: it can assemble a material with a user-defined property, or search for novelty in the space of specified order parameters. In the latter mode it explores the space of what can be made, rather than the space of structures that are low in energy but not necessarily kinetically accessible.

Authors

  • Stephen Whitelam
    Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, Califronia 94720, USA.
  • Isaac Tamblyn
    National Research Council of Canada Ottawa, Ontario K1N 5A2, Canada Vector Institute for Artificial Intelligence Toronto, Ontario M5G 1M1, Canada.