Hybrid breathers in nonlinear PT-symmetric metamaterials

Sascha Böhrkircher, Sebastian Erfort, Holger Cartarius, and Günter Wunner
Phys. Rev. A 100, 063826 – Published 16 December 2019

Abstract

On a two-dimensional planar parity-time-(PT-)symmetric nonlinear magnetic metamaterial, consisting of split-ring dimers with balanced gain and loss, discrete breather solutions can be found. We extend these studies and by numerical calculations reveal the existence of further stable, long-lived oscillations, with certain frequencies, in the breather spectrum. We describe these oscillations in terms of an analytical breather theory, and show that they can be interpreted as superpositions of a breather oscillation and a plane wave. We coin the term “hybrid breather” solutions for these solutions.

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  • Received 30 April 2019

DOI:https://doi.org/10.1103/PhysRevA.100.063826

©2019 American Physical Society

Physics Subject Headings (PhySH)

  1. Physical Systems
  1. Properties
Atomic, Molecular & OpticalGeneral Physics

Authors & Affiliations

Sascha Böhrkircher1,*, Sebastian Erfort1, Holger Cartarius1,2, and Günter Wunner1

  • 1Institut für Theoretische Physik 1, Universität Stuttgart, 70550 Stuttgart, Germany
  • 2Physik und ihre Didaktik, 5. Physikalisches Institut, Universität Stuttgart, 70550 Stuttgart, Germany

  • *sascha.boehrkircher@itp1.uni-stuttgart.de

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Vol. 100, Iss. 6 — December 2019

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