Zobrazeno 1 - 10
of 3 808
pro vyhledávání: '"Umeki A"'
Autor:
Yamashima, Taichi, Kashiwazaki, Takahiro, Suzuki, Takumi, Nehra, Rajveer, Nakamura, Tomohiro, Inoue, Asuka, Umeki, Takeshi, Takase, Kan, Asavanant, Warit, Endo, Mamoru, Furusawa, Akira
Optical circuit systems, unlike other systems, have the potential to perform quantum information processing (QIP) at higher clock rate than conventional processing. The approach utilizing the electromagnetic field of light allows deterministic QIP by
Externí odkaz:
http://arxiv.org/abs/2410.20693
Autor:
Endo, Mamoru, Takahashi, Kazuma, Nomura, Takefumi, Sonoyama, Tatsuki, Yabuno, Masahiro, Miki, Shigehito, Terai, Hirotaka, Kashiwazaki, Takahiro, Inoue, Asuka, Umeki, Takeshi, Nehra, Rajveer, Takase, Kan, Asavanant, Warit, Furusawa, Akira
Photon number-resolving detectors (PNRDs) are the ultimate optical sensors. Superconducting-nanostrip photon detectors (SNSPDs), traditionally known as ON-OFF detectors, have recently been found to have photon number resolving capability without mult
Externí odkaz:
http://arxiv.org/abs/2405.06901
Autor:
Tomoda, Hiroko, Machinaga, Akihiro, Takase, Kan, Harada, Jun, Kashiwazaki, Takahiro, Umeki, Takeshi, Miki, Shigehito, China, Fumihiro, Yabuno, Masahiro, Terai, Hirotaka, Okuno, Daichi, Takeda, Shuntaro
In optical quantum information processing with continuous variables, optical non-Gaussian quantum states are essential for universal and fault-tolerant quantum computation. Experimentally, their most typical generation method is photon subtraction (P
Externí odkaz:
http://arxiv.org/abs/2404.19304
Autor:
Yoshida, Takato, Okuno, Daichi, Kashiwazaki, Takahiro, Umeki, Takeshi, Miki, Shigehito, China, Fumihiro, Yabuno, Masahiro, Terai, Hirotaka, Takeda, Shuntaro
Quantum computing has been pursued with various hardware platforms, and an optical system is one of the most reasonable choices for large-scale computation. In the optical continuous-variable computation scheme, the incorporation of Gaussian gates an
Externí odkaz:
http://arxiv.org/abs/2403.11404
Autor:
Kawasaki, Akito, Brunel, Hector, Ide, Ryuhoh, Suzuki, Takumi, Kashiwazaki, Takahiro, Inoue, Asuka, Umeki, Takeshi, Yamashima, Taichi, Sakaguchi, Atsushi, Takase, Kan, Endo, Mamoru, Asavanant, Warit, Furusawa, Akira
Entanglement is a fundamental resource of various optical quantum-information-processing (QIP) applications. Towards high-speed QIP system, entanglement should be encoded in short wavepackets. We report real-time observation of ultrafast optical Eins
Externí odkaz:
http://arxiv.org/abs/2403.07357
Autor:
Kawasaki, Akito, Ide, Ryuhoh, Brunel, Hector, Suzuki, Takumi, Nehra, Rajveer, Nakashima, Katsuki, Kashiwazaki, Takahiro, Inoue, Asuka, Umeki, Takeshi, China, Fumihiro, Yabuno, Masahiro, Miki, Shigehito, Terai, Hirotaka, Yamashima, Taichi, Sakaguchi, Atsushi, Takase, Kan, Endo, Mamoru, Asavanant, Warit, Furusawa, Akira
Quantum information processors greatly benefit from high clock frequency to fully harnessing the quantum advantages before they get washed out by the decoherence. In this pursuit, all-optical systems offer unique advantages due to their inherent 100
Externí odkaz:
http://arxiv.org/abs/2402.17408
Autor:
Okuno, Daichi, Yoshida, Takato, Arita, Ryoko, Kashiwazaki, Takahiro, Umeki, Takeshi, Miki, Shigehito, Terai, Hirotaka, Yabuno, Masahiro, China, Fumihiro, Takeda, Shuntaro
We present a loop-based optical processor enabling time-domain programmable beam-splitter (BS) operations for a phase-sensitive non-Gaussian state. The loop itself is of high quality, allowing for storage of a non-Gaussian state for up to seven round
Externí odkaz:
http://arxiv.org/abs/2402.14372
Autor:
Nakamura, Tomohiro, Nomura, Takefumi, Endo, Mamoru, Sakaguchi, Atsushi, Ruofan, He, Kashiwazaki, Takahiro, Umeki, Takeshi, Takase, Kan, Asavanant, Warit, Yoshikawa, Jun-ichi, Furusawa, Akira
In order to provide a cloud service of optical quantum computing, it is inevitable to stabilize the optical system for many hours. It is advantageous to construct a fiber-based system, which does not require spatial alignment. However, fiber-based sy
Externí odkaz:
http://arxiv.org/abs/2401.17533
Autor:
Goro Yoshioka, Takanori Yamaguchi, Atsushi Tanaka, Hikari Sakai, Junji Koyamatsu, Toshiharu Umeki, Kohei Kaneta, Yoshiko Sakamoto, Atsushi Kawaguchi, Koichi Node
Publikováno v:
ESC Heart Failure, Vol 11, Iss 6, Pp 3982-3992 (2024)
Abstract Aims This study aimed to investigate the clinical impact of pre‐procedural left atrial strain (LAS) in patients undergoing permanent pacemaker implantation (PPI). Methods and Results This single‐centre retrospective study enrolled 434 pa
Externí odkaz:
https://doaj.org/article/a3761368fb594075bbc6d50b64d229bd
Broadband generation and tomography of non-Gaussian states for ultra-fast optical quantum processors
Autor:
Akito Kawasaki, Ryuhoh Ide, Hector Brunel, Takumi Suzuki, Rajveer Nehra, Katsuki Nakashima, Takahiro Kashiwazaki, Asuka Inoue, Takeshi Umeki, Fumihiro China, Masahiro Yabuno, Shigehito Miki, Hirotaka Terai, Taichi Yamashima, Atsushi Sakaguchi, Kan Takase, Mamoru Endo, Warit Asavanant, Akira Furusawa
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-8 (2024)
Abstract Quantum information processors benefit from high clock frequencies to fully harness quantum advantages before they are lost to decoherence. All-optical systems offer unique benefits due to their inherent 100-THz carrier frequency, enabling t
Externí odkaz:
https://doaj.org/article/815de84ff37542e2a7be8d545599df67