A method for analyzing a simulation of the execution of a quantum circuit includes: a step of post-selecting one or more particular values of one or more qubits at one or more steps of the simulation; a step of setting filtration that sets the value of one or more quantum states of the quantum state vector(s) derived from the post-selection(s) of qubits; a step of analyzing the part of the simulation that corresponds to the post-selection(s) of qubits and to the quantum state vector(s) filtered.