Superradiance has grown into a major topic in quantum optics since Dicke’s seminal paper in 1954. Recently, timed Dicke states, the collective excitations of extended atomic ensembles by single photon absorption, have been found with interesting properties such as directional emissions and collective Lamb shifts. By combining single photon superradiance and electromagenetically induced transparency, we can use timed Dicke states to construct momentum-space tight-binding lattices, coined the superradiance lattices [1]. In this talk, I will introduce the basic concept of superradiance lattice in one dimension and its applications in quantum metrology [2], optical diodes [3] and x-ray reflection [4]. Other interesting phenomena such as Bloch oscillations and dynamic localization can also be observed [1]. Superradiance lattices can be extended to two and even more than three dimensions and offer a tunable platform for simulating high dimensional topological physics.

[1] D.-W. Wang, R.-B. Liu, S.-Y. Zhu and M.O. Scully, PRL 114, 043602 (2015)

[2] D.-W. Wang and M. O. Scully, PRL 113, 083601 (2014)

[3] D.-W. Wang, H.-T. Zhou, M.-J. Guo, J.-X. Zhang, J. Evers and S.-Y. Zhu, PRL 110, 093901 (2013)

[4] D.-W. Wang, S.-Y. Zhu, J. Evers and M. O. Scully, PRA 91, 011801(R) (2015)