Smallest artificial molecular neural-net for collective and emergent information processing

Bandyopadhyay, Anirban; Sahu, Satyajit; Fujita, Daisuke
September 2009
Applied Physics Letters;9/14/2009, Vol. 95 Issue 11, p113702
Academic Journal
While exploring the random diffusion of 2 bit molecular switches (we define as molecular neuron) on an atomic flat Au (111) substrate, we have found that at least four molecules are required to construct a functional neural net. Surface electron density wave enables communication of one to many molecules at a time—a prerequisite for the parallel processing. Here we have shown that in a neural net of several molecules, some of them could dynamically store information as memory and consistently replicate the fundamental relationship that is found only in a collective and emergent computing system like our brain.


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