Journal
EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS
Volume 225, Issue 6-7, Pages 1231-1243Publisher
SPRINGER HEIDELBERG
DOI: 10.1140/epjst/e2016-02668-9
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Funding
- European Union [FP7-REGPOT-2012-2013-1, 316165]
- Ministry of Education and Science of the Russian Federation in the framework of the Increase Competitiveness Program of NUST MISiS [K2-2015-007]
- Thales Project MACOMSYS - European Union (European Social Fund ESF)
- Greek national funds through the Operational Program Education and Lifelong Learning of the National Strategic Reference Framework (NSRF) Research Funding Program: THALES Investing in Knowledge Society via the European Social Fund
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One-dimensional arrays of Superconducting QUantum Interference Devices (SQUIDs) form magnetic metamaterials exhibiting extraordinary properties, including tunability, dynamic multistability, negative magnetic permeability, and broadband transparency. The SQUIDs in a metamaterial interact through non-local, magnetic dipole-dipole forces, that makes it possible for multiheaded chimera states and coexisting patterns, including solitary states, to appear. The spontaneous emergence of chimera states and the role of multistability is demonstrated numerically for a SQUID metamaterial driven by an alternating magnetic field. The spatial synchronization and temporal complexity are discussed and the parameter space for the global synchronization reveals the areas of coherence-incoherence transition. Given that both one- and two-dimensional SQUID metamaterials have been already fabricated and investigated in the lab, the presence of a chimera state could in principle be detected with presently available experimental set-ups.
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