Virtual Science Forum - Speakers’ corner talk: Valla Fatemi

Event time: 
Tuesday, November 17, 2020 - 12:00pm to 1:00pm
Postdoctoral Associates
Zoom See map
Event description: 

Valla Fatemi will present his work on Topological Band Structures in the Offset-Parameter-Dependence of Small Josephson Circuits during the Virtual Science Forum.


We introduce Weyl Josephson circuits: small Josephson junction circuits that simulate Weyl band structures. We first formulate a general approach to design circuits that are analogous to Bloch Hamiltonians of a desired dimensionality and symmetry class. We then construct and analyze a six-junction device that produces a 3D Weyl Hamiltonian with broken inversion symmetry and in which topological phase transitions can be triggered in situ. We argue that currently available superconducting circuit technology allows experiments that probe topological properties inaccessible in condensed matter systems.

Authors: Valla Fatemi, Anton R. Akhmerov, Landry Bretheau
Preprint: arXiv:2008.13758

Register to receive the Zoom link