Publisher Correction: Polarons in materials

In Box 1, the image labels "Short-range electron-photon interaction" and "Long-range electron-photon interaction" should have read "Short-range electron-phonon interaction" and "Long-range electron-phonon interaction", respectively.In the same Box, the sentence "shallow electronic state (≈ 10 eV below E F )" should have read "shallow electronic state (≈ 10 meV below E F )".