Quantum interference device images current flow in qubit circuits

Map of the circuits magnetic field, showing the flow of current density within the device. (Image: Departement of Physics, University of Basel)

Physicists from the SNI network at the University of Basel and the ETH Zurich have used a scanning superconducting quantum interference device (SQUID) to image the current flow of a superconducting device developed for quantum computing. The data will help to optimize qubit control. The article was recently published in Applied Physics Letters.

On the Applied Physics Letters website, you will also find a ‘Scilight’ feature with a short summary of the paper.