Chimera states in globally coupled sine circle map lattices: Spatiotemporal intermittency and hyperchaos

Joydeep Singha; Neelima Gupte

doi:10.1016/j.physleta.2019.126225

Chimera states in globally coupled sine circle map lattices: Spatiotemporal intermittency and hyperchaos

Joydeep Singha, Neelima Gupte

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Chimera states with coexisting phase synchronised and desynchronised groups are seen in a globally coupled sine circle map lattice with distinct values of intergroup and intragroup coupling, at some parameters. Structures similar to spatiotemporally intermittent regions, are seen in the desynchronised group. These states exhibit hyperchaos. Other states seen include fully synchronised/desynchronised states and two cluster states. The phase diagram of the system is obtained using complex order parameters. This is reproduced accurately using the average fraction of laminar/burst sites in each group, indicating the key nature of this quantity.

Original language	English
Article number	126225
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	384
Issue number	11
DOIs	https://doi.org/10.1016/j.physleta.2019.126225
State	Published - 20 Apr 2020
Externally published	Yes

Keywords

Chimera state
Coupled map lattice
Hyperchaos
Spatiotemporal intermittency

ASJC Scopus subject areas

General Physics and Astronomy

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10.1016/j.physleta.2019.126225

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title = "Chimera states in globally coupled sine circle map lattices: Spatiotemporal intermittency and hyperchaos",

abstract = "Chimera states with coexisting phase synchronised and desynchronised groups are seen in a globally coupled sine circle map lattice with distinct values of intergroup and intragroup coupling, at some parameters. Structures similar to spatiotemporally intermittent regions, are seen in the desynchronised group. These states exhibit hyperchaos. Other states seen include fully synchronised/desynchronised states and two cluster states. The phase diagram of the system is obtained using complex order parameters. This is reproduced accurately using the average fraction of laminar/burst sites in each group, indicating the key nature of this quantity.",

keywords = "Chimera state, Coupled map lattice, Hyperchaos, Spatiotemporal intermittency",

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T2 - Spatiotemporal intermittency and hyperchaos

AU - Singha, Joydeep

AU - Gupte, Neelima

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Y1 - 2020/4/20

N2 - Chimera states with coexisting phase synchronised and desynchronised groups are seen in a globally coupled sine circle map lattice with distinct values of intergroup and intragroup coupling, at some parameters. Structures similar to spatiotemporally intermittent regions, are seen in the desynchronised group. These states exhibit hyperchaos. Other states seen include fully synchronised/desynchronised states and two cluster states. The phase diagram of the system is obtained using complex order parameters. This is reproduced accurately using the average fraction of laminar/burst sites in each group, indicating the key nature of this quantity.

AB - Chimera states with coexisting phase synchronised and desynchronised groups are seen in a globally coupled sine circle map lattice with distinct values of intergroup and intragroup coupling, at some parameters. Structures similar to spatiotemporally intermittent regions, are seen in the desynchronised group. These states exhibit hyperchaos. Other states seen include fully synchronised/desynchronised states and two cluster states. The phase diagram of the system is obtained using complex order parameters. This is reproduced accurately using the average fraction of laminar/burst sites in each group, indicating the key nature of this quantity.

KW - Chimera state

KW - Coupled map lattice

KW - Hyperchaos

KW - Spatiotemporal intermittency

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JO - Physics Letters, Section A: General, Atomic and Solid State Physics

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ER -

Chimera states in globally coupled sine circle map lattices: Spatiotemporal intermittency and hyperchaos

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Keywords

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