. Method for analyzing a simulation of the execution of a quantum circuit, comprising: - a step of post-selecting one or more particular values of one or more qubits at one or more steps of the simulation, carried out at the output of the measurement of said qubit(s) after a quantum gate operation on said qubit(s), in order to post-select one or more branches of the execution in the execution tree obtaned by said simulation, the execution tree comprising nodes representing each qubit of the quantum state vector, two branches departing from each node: each branch representing a quantum state of the measured qubit, - a step of retrieving, by an iterator, all or some of the quantum states of the quantum state vector(s) derived from the post-selection(s) of qubits, - a step of analyzing the part of said simulation that corresponds to the post-selection(s) of qubits and to the quantum state vector(s) retrieved. - a step of communicating quantum states of one or more quantum state vectors between on the one hand a simulator in which those quantum states are stored and on the other hand an application terminal wherein those quantum states will be analyzed, - those quantum states being communicated in multiple installments, between a memory of the simulator and a buffer memory of the simulator, that buffer memory size being less than the size of the memory storing those quantum states in the simulator, then between said buffer memory of the simulator and a buffer memory of said application terminal, that buffer memory size being less than the size of the memory, - the iterator looping onto each quantum state of the quantum state vector obtained at the output of the simulator, so that each quantum state can be retrieved on the application terminal, - the memory of the simulator transmitting sections of the quantum state vector to the iterator which is configured to process those sections of the quantum state vector and to send those sections of the quantum state vector to the buffer memory of the simulator, - the number of qubits in the quantum circuit is between 10 and 50. - a step of post-selecting one or more particular values of one or more qubits at one or more steps of the simulation, carried out at the output of the measurement of said qubit(s) after a quantum gate operation on said qubit(s), in order to post-select one or more branches of the execution in the execution tree obtaned by said simulation, the execution tree comprising nodes representing each qubit of the quantum state vector, two branches departing from each node: each branch representing a quantum state of the measured qubit, - a step of retrieving, by an iterator, all or some of the quantum states of the quantum state vector(s) derived from the post-selection(s) of qubits, - a step of analyzing the part of said simulation that corresponds to the post-selection(s) of qubits and to the quantum state vector(s) retrieved. - a step of communicating quantum states of one or more quantum state vectors between on the one hand a simulator in which those quantum states are stored and on the other hand an application terminal wherein those quantum states will be analyzed, - those quantum states being communicated in multiple installments, between a memory of the simulator and a buffer memory of the simulator, that buffer memory size being less than the size of the memory storing those quantum states in the simulator, then between said buffer memory of the simulator and a buffer memory of said application terminal, that buffer memory size being less than the size of the memory, - the iterator looping onto each quantum state of the quantum state vector obtained at the output of the simulator, so that each quantum state can be retrieved on the application terminal, - the memory of the simulator transmitting sections of the quantum state vector to the iterator which is configured to process those sections of the quantum state vector and to send those sections of the quantum state vector to the buffer memory of the simulator, - the number of qubits in the quantum circuit is between 10 and 50.