Connecting Quantum Systems with Classical Wires

• Item type: SIG Technical Reports(1)
• 公開日: 2023-03-06
• タイトル: Connecting Quantum Systems with Classical Wires
• タイトル / 言語: en
• タイトル: Connecting Quantum Systems with Classical Wires
• 言語: eng
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_18gh
• 資源タイプ: technical report
• 著者所属: Department of Applied Physics and Physico-Informatics, Keio University
• 著者所属: Department of Applied Physics and Physico-Informatics, Keio University
• 著者所属: Department of Applied Physics and Physico-Informatics, Keio University／Quantum Computing Center, Keio University
• 著者所属(英): en
• 著者所属(英): Department of Applied Physics and Physico-Informatics, Keio University
• 著者所属(英): en
• 著者所属(英): Department of Applied Physics and Physico-Informatics, Keio University
• 著者所属(英): en
• 著者所属(英): Department of Applied Physics and Physico-Informatics, Keio University / Quantum Computing Center, Keio University
• 著者名: Hiroyuki, Harada; Kaito, Wada; Naoki, Yamamoto
• 著者名(英): Hiroyuki, Harada; Kaito, Wada; Naoki, Yamamoto
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: To overcome the limitation of the quality and quantity of qubits in currenet quantum devices, quantum circuit cutting technique has been proposed. This techniques take a strategy to cut a quantum circuit, enabling us to execute quantum simulations requiring more qubits than physically available. Although this method is appealing, there is a problem that the sampling cost grows exponentially with the number of cuts, so it is important to pursue decomposition methods with small sampling costs. In this work, we propose a method of decomposing a single-qubit identity channel, which achieves a optimal sampling costs without any ancilla qubits. Furthermore, we give optimal decomposition of a n-qubit parallel identity channels. While recent studies have shown that the use of a pre-shared Bell pairs allows for optimal decomposition of n-qubit parallel identity channels, our method does not require that resources but achieve the same sampling costs.
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: To overcome the limitation of the quality and quantity of qubits in currenet quantum devices, quantum circuit cutting technique has been proposed. This techniques take a strategy to cut a quantum circuit, enabling us to execute quantum simulations requiring more qubits than physically available. Although this method is appealing, there is a problem that the sampling cost grows exponentially with the number of cuts, so it is important to pursue decomposition methods with small sampling costs. In this work, we propose a method of decomposing a single-qubit identity channel, which achieves a optimal sampling costs without any ancilla qubits. Furthermore, we give optimal decomposition of a n-qubit parallel identity channels. While recent studies have shown that the use of a pre-shared Bell pairs allows for optimal decomposition of n-qubit parallel identity channels, our method does not require that resources but achieve the same sampling costs.
• 書誌レコードID / 収録物識別子タイプ: NCID
• 書誌レコードID / 収録物識別子: AA12894105
• 書誌情報: 研究報告量子ソフトウェア（QS）; 巻 2023-QS-8, 号 29, p. 1-7, 発行日 2023-03-06
• ISSN / 収録物識別子タイプ: ISSN
• ISSN / 収録物識別子: 2435-6492
• Notice: SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc.
• 出版者 / 言語: ja
• 出版者: 情報処理学会