Quantum electrodynamics of photonic Weyl points

The recent realization of photonic Weyl points in three-dimensional photonic crystals [1,2] has drawn significant interest due to their potential as highly controllable platforms to explore topological phenomena [3]. In this talk, we present a systematic study of the decay dynamics of quantum emitters embedded in Weyl-point photonic materials. By combining both analytical and numerical approaches [4], we show how the unique dispersion of photonic Weyl points enables the emergence of a novel light-matter bound state, which cannot be described by conventional perturbative treatments. Potential applications of these findings in emerging quantum technologies are also discussed.

[1] L. Lu, Z. Wang, D. Ye, L. Ran, L. Fu, J. D. Joannopoulos, M. Soljacic, “Experimental observation of Weyl points,” Science 349, 622 (2015).
[2] J. Bravo-Abad, L. Lu, L. Fu, H. Buljan, and M. Soljacic, "Weyl points in photonic-crystal superlattices," 2D Materials 2, 34013 (2015).
[3] T. Ozawa, H. M. Price, A. Amo, N. Goldman, M. Hafezi, L. Lu, M. Rechtsman, D. Schuster, J. Simon, O. Zilberberg, and I. Carusotto, “Topological Photonics,” arXiv:1802.04173 (2018).
[4] A. Gonzalez-Tudela and I. Cirac, “Non-Markovian quantum optics with three-dimensional state-dependent optical lattices,” arXiv:1806.02528 (2018).