Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Jun-ichi Yoshikawa"'
Autor:
Kan Takase, Kosuke Fukui, Akito Kawasaki, Warit Asavanant, Mamoru Endo, Jun-ichi Yoshikawa, Peter van Loock, Akira Furusawa
Publikováno v:
npj Quantum Information, Vol 9, Iss 1, Pp 1-11 (2023)
Abstract Practical quantum computing requires robust encoding of logical qubits in physical systems to protect fragile quantum information. Currently, the lack of scalability limits the logical encoding in most physical systems, and thus the high sca
Externí odkaz:
https://doaj.org/article/c269547c3a1a4b5fb8b7e900c9028ee0
Autor:
Atsushi Sakaguchi, Shunya Konno, Fumiya Hanamura, Warit Asavanant, Kan Takase, Hisashi Ogawa, Petr Marek, Radim Filip, Jun-ichi Yoshikawa, Elanor Huntington, Hidehiro Yonezawa, Akira Furusawa
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract Measurement-based quantum computation with optical time-domain multiplexing is a promising method to realize a quantum computer from the viewpoint of scalability. Fault tolerance and universality are also realizable by preparing appropriate
Externí odkaz:
https://doaj.org/article/378c0de2eef24f26b4b0d203b0c3c8f9
Autor:
Tatsuki Sonoyama, Kazuma Takahashi, Baramee Charoensombutamon, Sachiko Takasu, Kaori Hattori, Daiji Fukuda, Kosuke Fukui, Kan Takase, Warit Asavanant, Jun-ichi Yoshikawa, Mamoru Endo, Akira Furusawa
Publikováno v:
Physical Review Research, Vol 5, Iss 3, p 033156 (2023)
Non-Gaussian states of light, which are essential in fault-tolerant and universal optical quantum computation, are typically generated by a heralding scheme using photon detectors. Recently, it has been theoretically shown that the large timing jitte
Externí odkaz:
https://doaj.org/article/42144b8594fe4d2183aae20c20b4613d
Autor:
Shunya Konno, Warit Asavanant, Kosuke Fukui, Atsushi Sakaguchi, Fumiya Hanamura, Petr Marek, Radim Filip, Jun-ichi Yoshikawa, Akira Furusawa
Publikováno v:
Physical Review Research, Vol 3, Iss 4, p 043026 (2021)
In a continuous-variable optical system, the Gottesman-Kitaev-Preskill (GKP) qubit is a promising candidate for fault-tolerant quantum computation. To implement non-Clifford operations on GKP qubits, non-Gaussian operations are required. In this cont
Externí odkaz:
https://doaj.org/article/90a46f93f8ff49b9b3991816cd8c727d
Autor:
Jun-ichi Yoshikawa, Shota Yokoyama, Toshiyuki Kaji, Chanond Sornphiphatphong, Yu Shiozawa, Kenzo Makino, Akira Furusawa
Publikováno v:
APL Photonics, Vol 1, Iss 6, Pp 060801-060801-11 (2016)
In recent quantum optical continuous-variable experiments, the number of fully inseparable light modes has drastically increased by introducing a multiplexing scheme either in the time domain or in the frequency domain. Here, modifying the time-domai
Externí odkaz:
https://doaj.org/article/42b8605ec98549c5b1e5fc90fb172169
Publikováno v:
Physical Review X, Vol 3, Iss 4, p 041028 (2013)
Highly nonclassical quantum states of light, characterized by Wigner functions with negative values, have been all-optically created so far only in a heralded fashion. In this case, the desired output emerges rarely and randomly from a quantum-state
Externí odkaz:
https://doaj.org/article/3f05e15a30bf4f12934e072c6ccb9710
Autor:
Tomohiro Nakamura, Takefumi Nomura, Mamoru Endo, Ruofan He, Takahiro Kashiwazaki, Takeshi Umeki, Jun-ichi Yoshikawa, Akira Furusawa
Optical quantum information processing exploits interference of quantum light. However, when the interferometer is composed of optical fibers, degradation of interference visibility due to the finite polarization extinction ratio becomes a problem. H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e1f468fc703e9f324d0b9a6e75fa9a5
http://arxiv.org/abs/2302.14454
http://arxiv.org/abs/2302.14454
Autor:
Akito Kawasaki, Kan Takase, Takefumi Nomura, Sigehito Miki, Hirotaka Terai, Masahiro Yabuno, Fumihiro China, Warit Asavanant, Mamoru Endo, Jun-ichi Yoshikawa, Akira Furusawa
Publikováno v:
Optics express. 30(14)
Telecommunication wavelength with well-developed optical communication technologies and low losses in the waveguide are advantageous for quantum applications. However, an experimental generation of non-classical states called non-Gaussian states at t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::313ed9faf50bf675b39ba4b9b415e7cd
https://pubmed.ncbi.nlm.nih.gov/36237027
https://pubmed.ncbi.nlm.nih.gov/36237027
Autor:
Kosuke Fukui, Shuntaro Takeda, Mamoru Endo, Warit Asavanant, Jun-ichi Yoshikawa, Peter van Loock, Akira Furusawa
Publikováno v:
Physical Review Letters. 128
Non-Gaussian states are essential for many optical quantum technologies. The so-called optical quantum state synthesizer (OQSS), consisting of Gaussian input states, linear optics, and photon-number resolving detectors, is a promising method for non-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::653087bc56af0e9c08a6fe2083c52f22
https://doi.org/10.1103/physrevlett.128.240503
https://doi.org/10.1103/physrevlett.128.240503
Autor:
Kan Takase, Akito Kawasaki, Byung Kyu Jeong, Takahiro Kashiwazaki, Takushi Kazama, Koji Enbutsu, Kei Watanabe, Takeshi Umeki, Shigehito Miki, Hirotaka Terai, Masahiro Yabuno, Fumihiro China, Warit Asavanant, Mamoru Endo, Jun-ichi Yoshikawa, Akira Furusawa
Controlling the waveform of light is the key for a versatile light source in classical and quantum electronics. Although pulse shaping of classical light is a mature technique and has been used in various fields, more advanced applications would be r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a25c310adddb0cc782686230db180cb
http://arxiv.org/abs/2205.13097
http://arxiv.org/abs/2205.13097