Method for determining decoherence model of qubit and computer readable storage medium

A method for determining a decoherence model of a qubit, comprising:

• displaying a data input control, a decoherence model display control and a decoherence model determination control on a display interface;
• in response to an operation on the data input control, receiving decoherence measurement data obtained after performing decoherence measurement on the qubit;
• in response to an operation on the decoherence model display control, displaying a plurality of candidate decoherence models on the display interface, the plurality of candidate decoherence models corresponding to a plurality of type-parameter combinations and being determined based on the decoherence measurement data, and the plurality of type-parameter combinations being determined based on a plurality of model types and a plurality of model parameters;
• and
• in response to an operation on the decoherence model determination control, displaying a target decoherence model determined from the candidate decoherence models corresponding to the plurality of type-parameter combinations on the display interface.

A non-transitory computer readable storage medium, storing a set of instructions that are executable by one or more processors of a device to cause the device to perform operations for determining fidelity of a qubit gate in a quantum chip, the operations comprising:

• acquiring decoherence measurement data obtained by performing decoherence measurement on the qubit;
• determining a plurality of type-parameter combinations that includes combinations of model types and model parameters;
• determining candidate decoherence models corresponding to the plurality of type-parameter combinations based on the decoherence measurement data;
• and
• determining a target decoherence model from the candidate decoherence models corresponding to the plurality of type-parameter combinations.