Current Conversion: (class 363/14) Patents (Class 505/868)
  • Qubit tuning by magnetic fields in superconductors
    Patent number: 11501196
    Abstract: An embodiment of a qubit tuning device includes a first layer configured to generate a magnetic field, the first layer comprising a material exhibiting superconductivity in a cryogenic temperature range. In an embodiment, the qubit tuning device includes a qubit of a quantum processor chip, wherein the first layer is configured to magnetically interact with the qubit such that a first magnetic flux of the first layer causes a first change in a first resonance frequency of the qubit by a first frequency shift value.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: November 15, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Albert Frisch, Harry Barowski, Markus Brink
  • Superconducting toroidal magnet system
    Patent number: 6222434
    Abstract: A superconducting toroidal magnet system includes magnet segments subdivided into two groups, wherein each group has its own supply device, in order to prevent a total failure from local overheating in the event of a quench. The supply devices are constructed with low impedance. This promotes a so-called current swing between the groups.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: April 24, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventor: Wolfgang Nick