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Generalized Quantum Subspace Expansion

Nobuyuki Yoshioka 1,2*, Hideaki Hakoshima 3,4, Yuichiro Matsuzaki 3,5,
Yuuki Tokunaga 6, Yasunari Suzuki 6,7, and Suguru Endo 6

PHYSICAL REVIEW LETTERS 129, 020502 (2022)

 

1 Department of Applied Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

2 Theoretical Quantum Physics Laboratory, RIKEN Cluster for Pioneering Research (CPR), Wako-shi, Saitama 351-0198, Japan

3 Research Center for Emerging Computing Technologies, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan

4 Center for Quantum Information and Quantum Biology, Osaka University, 1-2 Machikaneyama, Toyonaka 560-0043, Japan

5 NEC-AIST Quantum Technology Cooperative Research Laboratory, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan

6 NTT Computer and Data Science Laboratories, NTT Corporation, Musashino 180-8585, Japan

7 JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan