Experimental realization of a $\cos (2\ddot{I}†)$ transmon qubit

Erwan Roverc'h, Alvise Borgognoni, Marius Villiers +7

Superconducting circuits with embedded symmetries are good candidates to robustly protect quantum information from dominant error channels. The $\cos (2\ddot{I}†)$ qubit, consisting of an…