Junction Nanotechnology of the Quantum Annealing Computer
Lecturer: Ed Wolf, Department of Applied Physics
This is the second of two seminars on Quantum Computing.
Basic research on superconductivity supported by the U. S. Department of Energy at the Ames Laboratory of Iowa State University, extended by private sector development at AT&T Bell Laboratories, in Murray Hill, NJ, established the Niobium-Aluminum Trilayer Josephson Junction process used in the D-Wave 2 computer and also in the Single Flux Quantum SFQ computer logic. The technical result originated in a fundamental study of electron-phonon-coupled superconductivity in d-band transition metal elements, including Niobium, extending methods of McMillan-Rowell tunneling spectroscopy via the superconducting proximity effect.