公开(公告)号：US10657455B2

公开(公告)日：2020-05-19

申请号：US16062076

申请日：2015-12-16

Applicant: Google LLC ,  Alireza Shabani Barzegar ,  Pedram Roushan ,  Yu Chen ,  Hartmut Neven

Inventor： Alireza Shabani Barzegar ,  Pedram Roushan ,  Yu Chen ,  Hartmut Neven

IPC: G06N10/00 ,  G01R33/035 ,  H01P3/00

Abstract: A quantum computing device includes multiple co-planar waveguide flux qubits, at least one coupler element arranged such that each co-planar waveguide flux qubit, of the multiple co-planar waveguide flux qubits, is operatively couplable to each other co-planar waveguide flux qubit, of the multiple co-planar waveguide flux qubits, of the quantum computing device, and a tuning quantum device, in which the tuning quantum device is in electrical contact with a first co-planar waveguide flux qubit of the plurality of co-planar waveguide flux qubits and with a second co-planar waveguide flux qubit of the plurality of co-planar waveguide flux qubits.

公开(公告)号：US12260157B1

公开(公告)日：2025-03-25

申请号：US17109455

申请日：2020-12-02

Applicant: Google LLC

Inventor： Kevin Joseph Satzinger ,  Andrew Lorne Dunsworth ,  Kostyantyn Yevgenovych Kechedzhi ,  Julian Shaw Kelly ,  Charles James Neill ,  Pedram Roushan

IPC: G06F30/20 ,  G06N10/00 ,  G06F111/10

Abstract: Systems and methods for calibrating and initializing a system comprising a first qubit, a second qubit, and a coupler are provided. A method of initializing the system can include calibrating the system; providing a first idle resonance frequency of the first qubit and a second idle resonance frequency of the second qubit; providing the first bias for the first idle resonance frequency and the second bias for the second idle resonance frequency; determining a value of the third resonance frequency at which a difference between the first degree of coupling and the second degree of coupling is minimized, when the first resonance frequency is the first idle resonance frequency and the second resonance frequency is the second idle resonance frequency; and providing the third bias according to the determined value of the third resonance frequency.

公开(公告)号：US11188843B2

公开(公告)日：2021-11-30

申请号：US16857955

申请日：2020-04-24

Applicant: Google LLC

Inventor： Alireza Shabani Barzegar ,  Pedram Roushan ,  Yu Chen ,  Hartmut Neven

IPC: H01P3/00 ,  G06N10/00 ,  G01R33/035

Abstract: A quantum computing device includes multiple co-planar waveguide flux qubits, at least one coupler element arranged such that each co-planar waveguide flux qubit, of the multiple co-planar waveguide flux qubits, is operatively couplable to each other co-planar waveguide flux qubit, of the multiple co-planar waveguide flux qubits, of the quantum computing device, and a tuning quantum device, in which the tuning quantum device is in electrical contact with a first co-planar waveguide flux qubit of the plurality of co-planar waveguide flux qubits and with a second co-planar waveguide flux qubit of the plurality of co-planar waveguide flux qubits.

公开(公告)号：US20200250570A1

公开(公告)日：2020-08-06

申请号：US16857955

申请日：2020-04-24

Applicant: Google LLC

Inventor： Alireza Shabani Barzegar ,  Pedram Roushan ,  Yu Chen ,  Hartmut Neven

IPC: G06N10/00 ,  G01R33/035 ,  H01P3/00

Abstract: A quantum computing device includes multiple co-planar waveguide flux qubits, at least one coupler element arranged such that each co-planar waveguide flux qubit, of the multiple co-planar waveguide flux qubits, is operatively couplable to each other co-planar waveguide flux qubit, of the multiple co-planar waveguide flux qubits, of the quantum computing device, and a tuning quantum device, in which the tuning quantum device is in electrical contact with a first co-planar waveguide flux qubit of the plurality of co-planar waveguide flux qubits and with a second co-planar waveguide flux qubit of the plurality of co-planar waveguide flux qubits.

公开(公告)号：US20180365587A1

公开(公告)日：2018-12-20

申请号：US16062076

申请日：2015-12-16

Applicant: Alireza Shabani BARZEGAR ,  Pedram ROUSHAN ,  Yu CHEN ,  Hartmut NEVEN ,  Google LLC

Inventor： Alireza Shabani Barzegar ,  Pedram Roushan ,  Yu Chen ,  Hartmut Neven

IPC: G06N99/00 ,  H01P3/00 ,  G01R33/035

Abstract: A quantum computing device includes multiple co-planar waveguide flux qubits, at least one coupler element arranged such that each co-planar waveguide flux qubit, of the multiple co-planar waveguide flux qubits, is operatively couplable to each other co-planar waveguide flux qubit, of the multiple co-planar waveguide flux qubits, of the quantum computing device, and a tuning quantum device, in which the tuning quantum device is in electrical contact with a first co-planar waveguide flux qubit of the plurality of co-planar waveguide flux qubits and with a second co-planar waveguide flux qubit of the plurality of co-planar waveguide flux qubits.