Speaker: Alexander N. Poddubny, Ioffe Institute, St. Petersburg, Russia

Title: Scattering and Localization of Photon Pairs Interacting with Qubits in a Waveguide

Abstract:

We will discuss interaction of photon pairs with arrays of two-level qubits embedded into a waveguide. Our theoretical results indicate enhancement of the pair scattering when the total energy of two incoming photons resonates with the double-excited subradiant states [arXiv:1908.04844]. In addition to subradiant states, we identify twilight states, that are products of single-excitation bright and subradiant states, and discuss interaction-induced localization of photon pairs.

Coffee/tea and cake from 13:00