US 12,039,402 B2
Color-map method to eliminate qubit frequency crowding in a quantum computing chip
Jared Barney Hertzberg, Yorktown Heights, NY (US); Alan E. Rosenbluth, Yorktown Heights, NY (US); and Dongbing Shao, Briarcliff Manor, NY (US)
Assigned to INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US)
Filed by INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US)
Filed on Aug. 20, 2020, as Appl. No. 16/998,851.
Prior Publication US 2022/0058509 A1, Feb. 24, 2022
Int. Cl. G06N 10/00 (2022.01)
CPC G06N 10/00 (2019.01) 20 Claims
OG exemplary drawing
 
1. A method of frequency allocation in a quantum chip having a plurality of qubits, comprising:
determining, by a computer system a plurality of frequency groups based on a configuration of the plurality of qubits, wherein each frequency group of the plurality of frequency groups has a range of frequencies;
determining, by the computer system, for each of the plurality of qubits, a qubit frequency;
assigning a frequency group from the plurality of frequency groups to each of the plurality of qubits based on each respective qubit frequency;
determining, by the computer system, for at least one qubit of the plurality of qubits that a frequency collision does not exist between said at least one qubit and neighboring qubits in the plurality of qubits based on the qubit frequency of said at least one qubit and at least one qubit frequency of the neighboring qubits; and
adjusting on the quantum chip, the frequency of each of the at least one qubit to have a frequency in the range of frequencies of the frequency group to which that qubit was assigned based on the determination that a frequency collision does not exist between said at least one qubit and said neighboring qubits in the plurality of qubits.