Gleb Finkelstein, Duke University

Title: Multiterminal Graphene-based Josephson Junctions — a Playground for Non-linear and Quantum Physics

Abstract: Josephson junctions are at the heart of many quantum devices, including superconducting qubits. In the recently developed multi-terminal Josephson junctions, several superconducting contacts are made to a common non-superconducting region. It has been predicted that these devices could emulate the electronic bands of a real crystal, including topological materials.
In this talk, I introduce Josephson junctions and present the recent work on the multi-terminal junctions made of graphene. Our main interest is the “multiplet” resonances, which are observed at commensurate voltages across the junctions. We show that these resonances can be established via a synchronization mechanism analogous to the classical dynamics of the Kapitza pendulum.

Host: Weijian Chen