Magnetic imaging of superconducting qubit devices with scanning SQUID-on-tip
Magnetic imaging of superconducting qubit devices with scanning SQUID-on-tip
We use a scanning superconducting quantum interference device (SQUID) to image the magnetic flux produced by a superconducting device designed for quantum computing. The nanometer-scale SQUID-on-tip probe reveals the flow of superconducting current through the circuit as well as the locations of trapped magnetic flux. In particular, maps of current …