US 12,035,644 B2
Architectures for quantum information processing
John Morton, London (GB); Michael Fogarty, London (GB); Simon Schaal, London (GB); and Sofia Patomaki, London (GB)
Assigned to QUANTUM MOTION TECHNOLOGIES LIMITED, London (GB)
Appl. No. 17/593,530
Filed by QUANTUM MOTION TECHNOLOGIES LIMITED, London (GB)
PCT Filed Mar. 10, 2020, PCT No. PCT/GB2020/050570
§ 371(c)(1), (2) Date Sep. 20, 2021,
PCT Pub. No. WO2020/188240, PCT Pub. Date Sep. 24, 2020.
Claims priority of application No. 1903884 (GB), filed on Mar. 21, 2019.
Prior Publication US 2022/0164695 A1, May 26, 2022
Int. Cl. H01L 29/06 (2006.01); G06N 10/40 (2022.01); H01L 29/08 (2006.01); H10N 99/00 (2023.01)
CPC H10N 99/05 (2023.02) [G06N 10/40 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A silicon-based device for quantum information processing, the device comprising:
a first plurality of confinement regions for confining spinful charge carriers for use as data qubits;
a second plurality of confinement regions for confining spinful charge carriers for use as ancillary qubits, each confinement region of the second plurality of confinement regions couplable to measurement apparatus for measuring an ancillary qubit;
a third plurality of confinement regions for confining spinful charge carriers, each confinement region of the third plurality of confinement regions situated on a line between a first confinement region of the first plurality of confinement regions and a second confinement region of the second plurality of confinement regions in order to space them apart and for use in mediating interactions between a data qubit of the first confinement region and an ancillary qubit of the second confinement region, the mediated interactions comprising interactions affecting respective data qubits and respective ancillary qubits at substantially the same time to enable coupling interactions between the respective data qubits and the respective ancillary qubits; and
one or more charge reservoirs;
wherein each confinement region of the third plurality of confinement regions is couplable to a charge reservoir of the one or more charge reservoirs.