Publications [#246240] of Daniel J. Gauthier
Papers Published
- Rosin, DP; Rontani, D; Gauthier, DJ, Synchronization of coupled Boolean phase oscillators.,
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics, vol. 89 no. 4
(April, 2014),
pp. 042907, ISSN 1539-3755 [doi]
(last updated on 2019/07/17)Abstract:
We design, characterize, and couple Boolean phase oscillators that include state-dependent feedback delay. The state-dependent delay allows us to realize an adjustable coupling strength, even though only Boolean signals are exchanged. Specifically, increasing the coupling strength via the range of state-dependent delay leads to larger locking ranges in uni- and bidirectional coupling of oscillators in both experiment and numerical simulation with a piecewise switching model. In the unidirectional coupling scheme, we unveil asymmetric triangular-shaped locking regions (Arnold tongues) that appear at multiples of the natural frequency of the oscillators. This extends observations of a single locking region reported in previous studies. In the bidirectional coupling scheme, we map out a symmetric locking region in the parameter space of frequency detuning and coupling strength. Because of the large scalability of our setup, our observations constitute a first step towards realizing large-scale networks of coupled oscillators to address fundamental questions on the dynamical properties of networks in a new experimental setting.