Mainz 2017 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 36: Photonics I

Q 36.8: Talk

Wednesday, March 8, 2017, 16:30–16:45, P 11

Breathers in nonlinear metamaterials with amplification and absorption — •Sascha Böhrkircher, Sebastian Erfort, Holger Cartarius, and Günter Wunner — 1. Institut für Theoretische Physik, Universität Stuttgart, 70550 Stuttgart, Germany

PT-symmetry originates from non-Hermitian quantum mechanics in the presence of gain and loss, and was experimentally proven in analogous optical systems. Recently, PT-symmetry was realized in metamaterials. As examinations have shown, a PT-symmetric nonlinear dimer chain composed of split-ring resonators can form discrete breather oscillations [1]. Previous works have been limited to one-dimensional systems. In our work we extend the one-dimensional dimer chain to a two-dimensional dimer surface and investigate the breather oscillations of this system starting from the one-dimensional solution. We study the behaviour of these breather oscillations by adiabatically increasing the coupling parameters.

[1] N. Lazarides and G. P. Tsironis, Phys. Rev. Lett 110, 053901 (2013)