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Phys. Rev. Lett. 85, 2026–2029 (2000)

Time Delay Effect in a Living Coupled Oscillator System with the Plasmodium of Physarum polycephalum

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Atsuko Takamatsu*, Teruo Fujii, and Isao Endo
Biochemical Systems Laboratory, RIKEN (The Institute of Physical and Chemical Research), 2-1, Hirosawa, Wako-shi, Saitama, 351-0198, Japan

Received 16 November 1999; published in the issue dated 28 August 2000

A living coupled oscillator system was constructed by a cell patterning method with a plasmodial slime mold, in which parameters such as coupling strength and distance between the oscillators can be systematically controlled. Rich oscillation phenomena between the two-coupled oscillators, namely, desynchronizing and antiphase/in-phase synchronization were observed according to these parameters. Both experimental and theoretical approaches showed that these phenomena are closely related to the time delay effect in interactions between the oscillators.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.85.2026
DOI:
10.1103/PhysRevLett.85.2026
PACS:
87.90.+y, 05.45.Xt

*Electronic address: takamatu@cel.riken.go.jp

Present address: Institute of Industrial Science, University of Tokyo, Roppongi, Tokyo, 106-8558, Japan.