Patent ID: 11900220
Assignee: ORIGIN QUANTUM COMPUTING TECHNOLOGY (HEFEI) CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 1:
2. The method for amplitude estimation according to claim 1, after the step of controlling a preset amplification quantum circuit to amplify the target quantum circuit by the next angle amplification factor, and measuring a target quantum state of the target quantum bit in the amplified target quantum circuit based on a preset total quantity of observation times, further comprising:
determining, based on a preset maximum iteration quantity, a preset initial scale factor, and an iteration error corresponding to the current iteration step, a quantity of observation times of observing the target quantum state in the next iteration step as the total quantity of observation times; and
counting a target quantity of times that the target quantum state is a specified state, calculating, based on the target quantity of times and the total quantity of observation times, a target frequency parameter obtained when the target quantum state is the specified state, and determining the target frequency parameter as the measurement result.