High-Threshold Fault-Tolerant Quantum Computation with Analog Quantum Error Correction

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  • 光の連続性を活用した量子誤り耐性向上手法
  • ヒカリ ノ レンゾクセイ オ カツヨウ シタ リョウシ アヤマリ タイセイ コウジョウ シュホウ

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Abstract

<p>To implement large-scale quantum computation, the Gottesman-Kitaev-Preskill (GKP) qubit has been recognized as an important technological element. However, it is still challenging to experimentally generate the GKP qubit with the required squeezing level for large-scale quantum computation. To reduce this requirement, we develop a method to prevent the squeezing level from decreasing during the construction of the large-scale cluster. We show that our method with the analog quantum error correction can relax the required squeezing level within the reach of the current experimental technology.</p>

Journal

  • Butsuri

    Butsuri 74 (10), 720-726, 2019-10-05

    The Physical Society of Japan

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