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IT House reported on May 10th, according to information from the State Intellectual Property Office, today, Tencent Technology (Shenzhen) Co., Ltd. “Frequency control signal processing method for quantum bits, superconducting quantum chip” patent was authorized,The publication number is CN112149832A.

The patent abstract shows that the inventionProvided are a frequency control signal processing method, device, superconducting quantum chip and storage medium for quantum bitsnot onlyMeasurement of distortion in frequency control signals of superconducting qubits can be achievedand the control circuit can be corrected by using the properties of the measured transfer function, so thatAchieving fast frequency offset to bits.

Tencent's superconducting quantum chip patent is authorized

IT House learned that the frequency control signal processing method of the qubit of the patent includes:

  • Configure the first square wave pulse for the target qubit; when the end time of the first square wave pulse reaches the first time threshold, control the target qubit to rotate the first target distance around the Y axis;

  • When the end time of the first square wave pulse reaches the second time threshold, perform quantum tomography measurement on the target qubit to determine the state of the target qubit;

  • Based on the quantum tomography measurement result of the target qubit, determine the distortion amount of the frequency control signal of the target qubit;

  • The frequency control signal is adjusted based on the distortion amount of the frequency control signal of the target qubit.

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