Quantum computation method and information processing apparatus

A quantum computation method comprising:

• Obtaining, by a processor, a plurality of equivalent circuits, the plurality of equivalent circuits being equivalent to a two-qubit gate included in a first quantum circuit and being generated using respective ones of a plurality of Mølmer-Sørensen (MS) gates whose parameter values differ;
• generating, by the processor, a plurality of second quantum circuits by converting the two-qubit gate included in the first quantum circuit into each of the plurality of equivalent circuits;
• causing, by the processor, a quantum computer to execute quantum computations respectively in accordance with the plurality of second quantum circuits generated;
• and
• outputting, by the processor, as a computation result of the first quantum circuit, a value obtained by averaging results of the quantum computations executed by the quantum computer in accordance with the plurality of second quantum circuits.

An information processing apparatus comprising:

• a memory;
• and
• a processor coupled to the memory and the processor configured to:
• obtain a plurality of equivalent circuits, the plurality of equivalent circuits being equivalent to a two-qubit gate included in a first quantum circuit and being generated using respective ones of a plurality of Mølmer-Sørensen (MS) gates whose parameter values differ,
• generate a plurality of second quantum circuits by converting the two-qubit gate included in the first quantum circuit into each of the plurality of equivalent circuits,
• cause a quantum computer to execute quantum computations respectively in accordance with the plurality of second quantum circuits generated, and
• output, as a computation result of the first quantum circuit, a value obtained by averaging results of the quantum computations executed by the quantum computer in accordance with the plurality of second quantum circuits.