公开(公告)号：US20210256412A1

公开(公告)日：2021-08-19

申请号：US17201510

申请日：2021-03-15

Applicant: Google LLC

Inventor： Yu Chen ,  John Martinis ,  Daniel Thomas Sank ,  Alireza Shabani Barzegar

IPC: G06N10/00 ,  H01P3/00 ,  G06F13/40 ,  H01L39/02

Abstract: A qubit device includes an elongated thin film uninterrupted by Josephson junctions, a quantum device in electrical contact with a proximal end of the elongated thin film, and a ground plane that is co-planar with the elongated thin film and is in electrical contact with a distal end of the elongated thin film, in which the thin film, the quantum device, and the ground plane comprise a material that is superconducting at a designed operating temperature.

公开(公告)号：US10949769B2

公开(公告)日：2021-03-16

申请号：US16849363

申请日：2020-04-15

Applicant: Google LLC

Inventor： Yu Chen ,  John Martinis ,  Daniel Thomas Sank ,  Alireza Shabani Barzegar

IPC: G06N10/00 ,  H01P3/00 ,  G06F13/40 ,  H01L39/02

Abstract: A qubit device includes an elongated thin film uninterrupted by Josephson junctions, a quantum device in electrical contact with a proximal end of the elongated thin film, and a ground plane that is co-planar with the elongated thin film and is in electrical contact with a distal end of the elongated thin film, in which the thin film, the quantum device, and the ground plane comprise a material that is superconducting at a designed operating temperature.

公开(公告)号：US10832156B2

公开(公告)日：2020-11-10

申请号：US16096110

申请日：2016-12-30

Applicant: Google LLC

Inventor： Yu Chen ,  Hartmut Neven ,  Austin Greig Fowler ,  Alireza Shabani Barzegar

IPC: G06N10/00 ,  H01L39/02 ,  H01P3/00 ,  H01P7/08

Abstract: A quantum computing device includes: a first array of qubits arranged along a first axis; and a second array of qubits arranged along a second axis different from the first axis so that the qubits of the second array intersect with the qubits of the first array to form a lattice structure, in which each qubit in the first array is offset along the second axis relative to a directly adjacent qubit in the first array, each qubit in the second array is offset along the first axis relative to a directly adjacent qubit in the second array, and each intersection between a qubit from the first array and a qubit from the second array in the lattice structure comprises a coupler arranged to inductively couple the qubit from the first array to the qubit from the second array.

公开(公告)号：US20180336299A1

公开(公告)日：2018-11-22

申请号：US15771109

申请日：2015-10-29

Applicant: Google LLC

Inventor： Alireza Shabani Barzegar ,  Hartmut Neven

IPC: G06F17/50 ,  G06N99/00

CPC classification number: G06F17/5009 ,  G06N99/002

Abstract: Methods, systems, and apparatus for designing an artificial quantum thermal bath. In one aspect, an apparatus includes a primary quantum system; an auxiliary quantum system comprising a plurality of modes and that interacts with the primary quantum system, wherein: the auxiliary system interacts with the primary quantum system through one or more couplings, wherein the one or more couplings are controllable; a steady state of the auxiliary system, a response function of the auxiliary quantum system, an auxiliary system operator, and a spectrum of the auxiliary quantum system are determined to meet a respective condition; and the auxiliary system is controllable to relax the primary quantum system to an equilibrium state using a controllable function of the auxiliary system operator.