Method for determining qnd fidelity, device and storage medium

An electronic device, comprising:

• at least one processor;
• and
• a memory connected in communication with the at least one processor;
• wherein the memory stores an instruction executable by the at least one processor, and the instruction, when executed by the at least one processor, enables the at least one processor to execute:
• determining a sub-QND fidelity Qk obtained after a quantum measurement of a kth input quantum state;
• wherein k is any one of 0, 1, 2 . . . , or N−1, and N is a natural number greater than or equal to 1 and represents a quantity of input quantum states required;
• and
• obtaining a target QND fidelity based on the sub-QND fidelity Qk, wherein the target QND fidelity is used to measure whether the quantum measurement satisfies a QND property.

A non-transitory computer-readable storage medium storing a computer instruction thereon, wherein the computer instruction is used to cause a computer to execute:

• determining a sub-QND fidelity Qk obtained after a quantum measurement of a kth input quantum state;
• wherein k is any one of 0, 1, 2 . . . , or N−1, and N is a natural number greater than or equal to 1 and represents a quantity of input quantum states required;
• and
• obtaining a target QND fidelity based on the sub-QND fidelity Qk, wherein the target QND fidelity is used to measure whether the quantum measurement satisfies a QND property.