Superconducting silicon nanodevices. This project will investigate superconductivity in silicon nanowire devices exhibiting both p-type and n-type conductivity. It builds on the recent demonstration at the University of Melbourne of superconductivity in nanowire devices at length-scales suitable for realisation of a broad range of superconducting device structures and utilises standard semiconductor-industry processes. This project will create a new platform for superconducting device developmen ....Superconducting silicon nanodevices. This project will investigate superconductivity in silicon nanowire devices exhibiting both p-type and n-type conductivity. It builds on the recent demonstration at the University of Melbourne of superconductivity in nanowire devices at length-scales suitable for realisation of a broad range of superconducting device structures and utilises standard semiconductor-industry processes. This project will create a new platform for superconducting device development in silicon with potential for building devices with new functionality and improved performance for applications in quantum information technologies, enhancing Australia’s global reputation in quantum information science and assisting emerging industries in this high-valued added area.Read moreRead less
Understanding and eliminating dissipation in superconducting devices: the origin of two-level defects. Superconducting quantum circuits constitute the next generation of nano-electronics. They find application in medicine, biology and geophysics; from mapping mineral deposits to imaging heart function, and are a promising candidate for quantum information processing and high speed electronics. A major loss mechanism within a Josephson junction (which forms the basis of a quantum circuit) is caus ....Understanding and eliminating dissipation in superconducting devices: the origin of two-level defects. Superconducting quantum circuits constitute the next generation of nano-electronics. They find application in medicine, biology and geophysics; from mapping mineral deposits to imaging heart function, and are a promising candidate for quantum information processing and high speed electronics. A major loss mechanism within a Josephson junction (which forms the basis of a quantum circuit) is caused by intrinsic two-level defects. What is not known is the true microscopic nature of these defects, although there are many theories. This project aims to unravel this mystery using detailed theoretical and computation analysis based on precision experimental characterisation.Read moreRead less