{ "cells": [ { "cell_type": "markdown", "id": "d518f5b4-a19b-4419-b615-59caae67c080", "metadata": {}, "source": [ "---\n", "title: \"OpenQASM 3 と Qiskit SDK\"\n", "description: \"OpenQASM 3と Qiskit SDK 間のコード変換方法\"\n", "---\n", "\n", "\n", "\n", "# OpenQASM 3 と Qiskit SDK\n", "\n" ] }, { "cell_type": "markdown", "id": "a86fc5a5-cc81-40e8-96ab-54841218f619", "metadata": { "tags": [ "version-info" ] }, "source": [ "{/*\n", " DO NOT EDIT THIS CELL!!!\n", " This cell's content is generated automatically by a script. Anything you add\n", " here will be removed next time the notebook is run. To add new content, create\n", " a new cell before or after this one.\n", " */}\n", "\n", "\n", " \n", " このページのコードは、以下の要件に基づいて開発された。\n", " これらのバージョンまたは新しいバージョンの使用をお勧めします。\n", "\n", " ```\n", " qiskit[all]~=2.5.1\n", " ```\n", " \n", "\n", "\n" ] }, { "cell_type": "markdown", "id": "232070ea-8685-4638-ba9d-7b52a123fd2e", "metadata": {}, "source": [ "Qiskit SDKは、量子プログラムの OpenQASM 表現と QuantumCircuit クラスの間で変換するためのいくつかのツールを提供します。 なお、これらのツールはまだ探索的な開発段階であり、 OpenQASM 3によって表現される動的回路機能に対するQiskitのサポートが増加するにつれて進化し続ける。\n", "\n", "\n", " この機能はまだ試行段階である。 したがって、シンタックスや能力は進化していくだろう。\n", "\n", "\n", "\n", "\n", "## OpenQASM 3プログラムをQiskitにインポートする\n", "\n", "この機能を使用するには、 `qiskit_qasm3_import ` パッケージをインストールする必要があります。 以下のコマンドでインストールする。\n", "\n", "```bash\n", "pip install qiskit-qasm3-import\n", "```\n", "\n", "現在、 OpenQASM 3からQiskitにインポートするために2つの高レベル関数が利用可能です。 これらの関数は、ファイル名を受け取る `load()` と、プログラム自体を文字列として受け取る `loads()` である：\n", "\n", "```python\n", "import qiskit.qasm3\n", "qiskit.qasm3.load(file_name)\n", "qiskit.qasm3.loads(program_string)\n", "```\n", "\n" ] }, { "cell_type": "markdown", "id": "d3adad38-7523-427e-a358-b7068423f59c", "metadata": {}, "source": [ "この例では、 OpenQASM 3 を使って量子プログラムを定義し、 `loads()` を使ってそれを直接 QuantumCircuit:\n", "\n" ] }, { "cell_type": "code", "execution_count": 1, "id": "e805197c-51fb-4216-8d24-ae26633d29bc", "metadata": {}, "outputs": [ { "data": { "text/plain": [ "\"Output" ] }, "execution_count": 1, "metadata": {}, "output_type": "execute_result" } ], "source": [ "import qiskit.qasm3\n", "\n", "program = \"\"\"\n", " OPENQASM 3.0;\n", " include \"stdgates.inc\";\n", "\n", " input float[64] a;\n", " qubit[3] q;\n", " bit[2] mid;\n", " bit[3] out;\n", "\n", " let aliased = q[0:1];\n", "\n", " gate my_gate(a) c, t {\n", " gphase(a / 2);\n", " ry(a) c;\n", " cx c, t;\n", " }\n", " gate my_phase(a) c {\n", " ctrl @ inv @ gphase(a) c;\n", " }\n", "\n", " my_gate(a * 2) aliased[0], q[{1, 2}][0];\n", " measure q[0] -> mid[0];\n", " measure q[1] -> mid[1];\n", "\n", " while (mid == \"00\") {\n", " reset q[0];\n", " reset q[1];\n", " my_gate(a) q[0], q[1];\n", " my_phase(a - pi/2) q[1];\n", " mid[0] = measure q[0];\n", " mid[1] = measure q[1];\n", " }\n", "\n", " if (mid[0]) {\n", " let inner_alias = q[{0, 1}];\n", " reset inner_alias;\n", " }\n", "\n", " out = measure q;\n", "\"\"\"\n", "circuit = qiskit.qasm3.loads(program)\n", "circuit.draw(\"mpl\")" ] }, { "cell_type": "markdown", "id": "a81fcee5-a89c-4e6d-8a9d-53c7da1e6c0d", "metadata": {}, "source": [ "\n", "\n", "## OpenQASM 3にエクスポート\n", "\n", "Qiskitコードを OpenQASM 3にエクスポートするには、文字列にエクスポートする `dumps()`、またはファイルにエクスポートする `dump()`。\n", "\n", "\n", "\n", "### 例： `dumps()`\n", "\n" ] }, { "cell_type": "code", "execution_count": 2, "id": "68e8d8b2-468b-4a70-903a-679355f9b7ee", "metadata": {}, "outputs": [ { "data": { "text/plain": [ "'OPENQASM 3.0;\\ninclude \"stdgates.inc\";\\nbit[2] meas;\\nqubit[2] q;\\nh q[0];\\ncx q[0], q[1];\\nbarrier q[0], q[1];\\nmeas[0] = measure q[0];\\nmeas[1] = measure q[1];\\n'" ] }, "execution_count": 2, "metadata": {}, "output_type": "execute_result" } ], "source": [ "from qiskit import QuantumCircuit\n", "from qiskit.qasm3 import dumps\n", "\n", "qc = QuantumCircuit(2)\n", "qc.h(0)\n", "qc.cx(0, 1)\n", "qc.measure_all()\n", "\n", "dumps(qc)" ] }, { "cell_type": "markdown", "id": "b7a54ec7-c08d-4390-8ce8-b5008c8312d3", "metadata": {}, "source": [ "\n", "\n", "### 例： `dump()`\n", "\n" ] }, { "cell_type": "code", "execution_count": 3, "id": "cc93cc6f-08e0-420f-8fb4-64620a53dc5a", "metadata": {}, "outputs": [], "source": [ "from qiskit import QuantumCircuit\n", "from qiskit.qasm3 import dump\n", "\n", "qc = QuantumCircuit(2)\n", "qc.h(0)\n", "qc.cx(0, 1)\n", "qc.measure_all()\n", "\n", "f = open(\"my_file.txt\", \"w\")\n", "dump(qc, f)\n", "f.close()" ] }, { "cell_type": "markdown", "id": "ef8e59ee-2889-4b73-9fe6-30d5e69f7164", "metadata": {}, "source": [ "詳細については、APIリファレンスの「 [OpenQASM 3へのエクスポート](/docs/api/qiskit/qasm3#exporting-to-openqasm-3) 」セクションを参照のこと。\n", "\n", "\n", "\n", "## 次のステップ\n", "\n", "\n", " * [IBM Quantum Composerの](/docs/guides/composer)ガイドで、 OpenQASM コードを生成する方法を学んでください。\n", " * [OpenQASM 3 Qiskit API](/docs/api/qiskit/qasm3) リファレンスを確認してください。\n", " * [「プログラムの確認」](/docs/guides/debugging-tools) のトピックをご覧ください。\n", " * [OpenQASM ライブ仕様を](https://openqasm.com/)確認する。\n", "\n", "\n" ] }, { "cell_type": "markdown", "metadata": {}, "id": "a1b8767d", "source": "© IBM Corp., 2017-2026" } ], "metadata": { "kernelspec": { "display_name": "Python 3", "language": "python", "name": "python3" }, "language_info": { "codemirror_mode": { "name": "ipython", "version": 3 }, "file_extension": ".py", "mimetype": "text/x-python", "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", "version": "3" } }, "nbformat": 4, "nbformat_minor": 4 }