Measurements of the switching supercurrent statistics of a superconducting quantum interference device based on bismuth, a second-order topological insulator, reveal that excited Andreev states are surprisingly long-lived

We have measured for the first time the singular orbital magnetism of undoped graphene.

We have probed a phase-biased graphene-superconductor ring via an rf resonator with a microwave pump.

We have measured a surprising collapse of the high frequency emission of a superconducting junction made with a carbon nanotube.