Generic Optical Excitations of Correlated Systems: π-tons.

@article{Kauch2020GenericOE,
  title={Generic Optical Excitations of Correlated Systems: $\pi$-tons.},
  author={A. Kauch and P. Pudleiner and K. Astleithner and P. Thunstr{\"o}m and T. Ribic and K. Held},
  journal={Physical review letters},
  year={2020},
  volume={124 4},
  pages={
          047401
        }
}
The interaction of light with solids gives rise to new bosonic quasiparticles, with the exciton being-undoubtedly-the most famous of these polaritons. While excitons are the generic polaritons of semiconductors, we show that for strongly correlated systems another polariton is prevalent-originating from the dominant antiferromagnetic or charge density wave fluctuations in these systems. As these are usually associated with a wave vector (π,π,…) or close to it, we propose to call the derived… Expand
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