PT-symmetry in honeycomb photonic lattices

Alexander Szameit; Mikael C. Rechtsman; Omri Bahat-Treidel; Mordechai Segev

doi:10.1103/PhysRevA.84.021806

PT-symmetry in honeycomb photonic lattices

Alexander Szameit, Mikael C. Rechtsman, Omri Bahat-Treidel, Mordechai Segev

Physics

Research output: Contribution to journal › Article › peer-review

179 Scopus citations

Abstract

We apply gain and 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 -symmetry breaking in this structure. We further show that the -symmetry can be restored by deforming the lattice.

Original language	English (US)
Article number	021806
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	84
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevA.84.021806
State	Published - Aug 19 2011

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

Access to Document

10.1103/PhysRevA.84.021806

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abstract = "We apply gain and 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 -symmetry breaking in this structure. We further show that the -symmetry can be restored by deforming the lattice.",

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