One-shot quantum error correction of classical and quantum information

• URL: http://arxiv.org/abs/2011.00668v2
• Date: Mon, 21 Jun 2021 18:08:32 GMT
• Title: One-shot quantum error correction of classical and quantum information
• Authors: Yoshifumi Nakata, Eyuri Wakakuwa, Hayata Yamasaki
• Abstract summary: Quantum error correction (QEC) is one of the central concepts in quantum information science. We provide a form of capacity theorem for both classical and quantum information. We show that a demonstration of QEC by short random quantum circuits is feasible.
• Score: 10.957528713294874
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum error correction (QEC) is one of the central concepts in quantum information science and also has wide applications in fundamental physics. The capacity theorems provide solid foundations of QEC. We here provide a general and highly applicable form of capacity theorem for both classical and quantum information, i.e., hybrid information, with assistance of a limited resource of entanglement in one-shot scenario, which covers broader situations than the existing ones. Harnessing the wide applicability of the theorem, we show that a demonstration of QEC by short random quantum circuits is feasible and that QEC is intrinsic in quantum chaotic systems. Our results bridge the progress in quantum information theory, near-future quantum technology, and fundamental physics.

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