Microwave signatures of ${\mathbb{Z}}_2$ and ${\mathbb{Z}}_4$ fractional Josephson effects

Pedro L. S. Lopes, Samuel Boutin, Philippe Karan +2

We present a many-body exact diagonalization study of the ${\mathbb{Z}}_2$ and ${\mathbb{Z}}_4$ Josephson effects in circuit quantum electrodynamics architectures. Numerical simulation…