Information operations with an excitable field

Ikuko Motoike, Kenichi Yoshikawa

Research output: Contribution to journalArticlepeer-review

104 Citations (Scopus)


It is well established that a traveling wave can be generated on an excitable field, which is described with a pair of partial differential equations for an activator and inhibitor. In the present paper, we use a numerical simulation to show that the traveling wave, or signaling pulse, can be transmitted from an excitable field to an opposing excitable field via an intervening passive diffusion field in a characteristic manner depending on the spatial geometry of the excitable fields. Using such characteristics, it is possible to design various kinds of logic gates together with a time-sequential memory device. Thus, these functions can perform time-sensitive operations in the absence of any controlling clock. It may be possible to accomplish these computations with excitable fields in an actual system, or to create a “field computer” composed of electronic active and passive units.

Original languageEnglish
Pages (from-to)5354-5360
Number of pages7
JournalPhysical Review E
Issue number5
Publication statusPublished - 1999


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