In the past 20 years, impressive progress has been made both experimentally and
theoretically in superconducting quantum circuits, which provide a platform for manipulating …

Using a well-controlled quantum system to simulate complex quantum matter is an idea that
has been around for 30 years and put into practice in systems of ultracold atoms for more …

The light-matter interaction can be utilized to qualitatively alter physical properties of
materials. Recent theoretical and experimental studies have explored this possibility of …

Enhancing optical nonlinearities so that they become appreciable on the single photon level
and lead to nonclassical light fields has been a central objective in quantum optics for many …

Abstract The Jaynes‐Cummings model describes the coupling between photons and a
single two‐level atom in a simplified representation of light‐matter interactions. In circuit …

Creating a train of single photons and monitoring its propagation and interaction is
challenging in most physical systems, as photons generally interact very weakly with other …

Breaking time-reversal symmetry is a prerequisite for accessing certain interesting many-
body states such as fractional quantum Hall states. For polaritons, charge neutrality prevents …

We investigate the Hubbard model on the honeycomb lattice with intrinsic spin-orbit
interactions as a paradigm for two-dimensional topological band insulators in the presence …

We assess experimentally the suitability of coupled-transmission-line resonators for studies
of quantum phase transitions of light. We have measured devices with low photon hop** …

Here, we report the experimental observation of a dynamical quantum phase transition in a
strongly interacting open photonic system. The system studied, comprising a Jaynes …