Virtual projection onto the code space for rotation-symmetric bosonic codes

ORAL

Abstract

Bosonic quantum error correction codes offer hardware-friendly strategies for error correction because they can use the infinite dimension of Hilbert space of harmonic oscillators. In this talk, we give a framework for virtually projecting the noisy state quantum state for rotation symmetric bosonic codes, e.g., cat codes and binomial codes in an error mitigation manner. Our work allows us to compute the same expectation value in a much more hardware-friendly way than the case in which we apply quantum error detection for rotation symmetric codes. Our framework paves the way towards high-accuracy bosonic quantum computing.

* This project is supported by Moonshot R&D, JST, Grant No. JPMJMS2061; MEXT Q-LEAP Grant No. JPMXS0120319794, and No. JPMXS0118068682 and PRESTO, JST, Grant No. JPMJPR2114, No. JPMJPR1919 and No. JPMJPR1916. and CREST, JST, Grant No. JPMJCR23I4, Moonshot R&D, JST, Grant No. JPMJMS226C and JSPS KAKENHI, Grant No. 23H04390.

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Publication: https://arxiv.org/abs/2211.06164

Presenters

  • Suguru Endo

    NTT Corporation, NTT Corporation, JST PRESTO, NTT computer & data science laboratories

Authors

  • Suguru Endo

    NTT Corporation, NTT Corporation, JST PRESTO, NTT computer & data science laboratories

  • Yasunari Suzuki

    NTT Corporation, NTT computer & data science laboratories, NTT Computer and Data Science Laboratories, NTT Corporation

  • Kento Tsubouchi

    Tokyo University

  • Rui Asaoka

    NTT corporation, NTT computer & data science laboratories

  • Kaoru Yamamoto

    NTT Computer and Data Science Laboratories, NTT Corporation, NTT computer & data science laboratories

  • Yuichiro Matsuzaki

    Chuo university, Faculty of Science and Engineering, Chuo University, Department of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo University, AIST, NTT Basic Research Laboratories, Chuo University

  • Yuuki Tokunaga

    NTT corporation, NTT Corporation, NTT computer & data science laboratories