Quantum computation support method and information processing apparatus

A quantum computation support method comprising:

• generating, by a processor, based on a first dynamic quantum circuit in which a gate operation to be executed varies in accordance with a measurement result of a quantum state at a predetermined measurement point for a qubit, a plurality of candidate assignments indicating candidates of a plurality of second qubits in a quantum computer to be assigned to a plurality of first qubits indicated in the first dynamic quantum circuit;
• generating, by the processor, based on each of the plurality of candidate assignments, respective second dynamic quantum circuits that are capable of performing a gate operation equivalent to the gate operation of the first dynamic quantum circuit while satisfying a gate-operation-related constraint condition in the quantum computer;
• acquiring, by the processor, measurement results at the predetermined measurement point in a plurality of quantum computations executed in accordance with the respective second dynamic quantum circuits corresponding to a part of the plurality of candidate assignments;
• calculating, by the processor, based on the measurement results, an index value affecting fidelity when the plurality of quantum computations is executed in accordance with the respective second dynamic quantum circuits corresponding to the plurality of candidate assignments;
• and
• determining, by the processor, based on the index value of each of the plurality of candidate assignments, an assignment of the plurality of second qubits to the plurality of first qubits.

An information processing apparatus comprising:

• a memory;
• and
• a processor coupled to the memory and the processor configured to:
• generate, based on a first dynamic quantum circuit in which a gate operation to be executed varies in accordance with a measurement result of a quantum state at a predetermined measurement point for a qubit, a plurality of candidate assignments indicating candidates of a plurality of second qubits in a quantum computer to be assigned to a plurality of first qubits indicated in the first dynamic quantum circuit,
• generate, based on each of the plurality of candidate assignments, respective second dynamic quantum circuits that are capable of performing a gate operation equivalent to the gate operation of the first dynamic quantum circuit while satisfying a gate-operation-related constraint condition in the quantum computer,
• acquire measurement results at the predetermined measurement point in a plurality of quantum computations executed in accordance with the respective second dynamic quantum circuits corresponding to a part of the plurality of candidate assignments,
• calculate, based on the measurement results, an index value affecting fidelity when the plurality of quantum computations is executed in accordance with the respective second dynamic quantum circuits corresponding to the plurality of candidate assignments, and
• determine, based on the index value of each of the plurality of candidate assignments, an assignment of the plurality of second qubits to the plurality of first qubits.