Inaba, Kensuke https://orcid.org/0000-0003-1227-4925
Inagaki, Takahiro https://orcid.org/0000-0003-1322-8744
Igarashi, Koji
Utsunomiya, Shoko
Honjo, Toshimori https://orcid.org/0000-0002-2176-9842
Ikuta, Takuya https://orcid.org/0000-0003-3371-9583
Enbutsu, Koji
Umeki, Takeshi
Kasahara, Ryoichi
Inoue, Kyo
Yamamoto, Yoshihisa
Takesue, Hiroki
Funding for this research was provided by:
This research was funded by the Impulsing Paradigm Change through Disruptive Technologies (ImPACT) Program of the Council of Science, Technology and Innovation (Cabinet Office, Government of Japan).
Article History
Received: 26 April 2021
Accepted: 9 May 2022
First Online: 31 May 2022
Competing interests
: The authors declare no competing non-financial interests but the following competing financial interests: K.Inaba., H.T., T.H., and T.Inagaki are inventors on patent JP6684259 and JP6796213 awarded in 2020 to NTT that covers a scheme of a Potts model solver based on a coherent Ising machine. T.U. and K.E. are inventors on patent JP5856083 awarded in 2016 to NTT that covers phase-sensitive amplifiers based on periodically poled lithium niobate waveguides. T.Inagaki, H.T., T.H., S.U., Y.Y., and K.Igarashi are inventors on patent JP6429346 awarded in 2018 to NTT, National Institute of Informatics, and Osaka University that covers a scheme for a coherent Ising machine. All other authors declare no competing interests.