PT-symmetry in honeycomb photonic lattices
classification
⚛️ physics.optics
keywords
pt-symmetryhoneycomblatticesphotonicaccompaniedapplybreakingdeforming
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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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