PT-symmetry in honeycomb photonic lattices

Details PT-symmetry in honeycomb photonic lattices PT-symmetry in honeycomb photonic lattices

2011-03-17

arxiv.org/abs/1103.3389v3

Physics

Optics

Scientific paper

We apply gain/loss to honeycomb photonic lattices and show that the
dispersion relation is identical to tachyons - particles with imaginary mass
that travel faster than the speed of light. This is accompanied by PT-symmetry
breaking in this structure. We further show that the PT-symmetry can be
restored by deforming the lattice.

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