Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Takase, Kan"'
Autor:
Warke, Aakash, Nötzel, Janis, Takase, Kan, Asavanant, Warit, Nagayoshi, Hironari, Fukui, Kosuke, Takeda, Shuntaro, Furusawa, Akira, van Loock, Peter
We propose an efficient decomposition scheme for a quantum receiver that attains the Helstrom bound in the low-photon regime for discriminating binary coherent states. Our method, which avoids feedback as used in Dolinar's case, breaks down nonlinear
Externí odkaz:
http://arxiv.org/abs/2410.21800
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
Generation of multi-photon Fock states at telecommunication wavelength using picosecond pulsed light
Autor:
Sonoyama, Tatsuki, Takahashi, Kazuma, Sano, Tomoki, Suzuki, Takumi, Nomura, Takefumi, Yabuno, Masahiro, Miki, Shigehito, Terai, Hirotaka, Takase, Kan, Asavanant, Warit, Endo, Mamoru, Furusawa, Akira
Multi-photon Fock states have diverse applications such as optical quantum information processing. For the implementation of quantum information processing, it is desirable that Fock states be generated within the telecommunication wavelength band, p
Externí odkaz:
http://arxiv.org/abs/2405.06567
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:
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:
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:
Konno, Shunya, Asavanant, Warit, Hanamura, Fumiya, Nagayoshi, Hironari, Fukui, Kosuke, Sakaguchi, Atsushi, Ide, Ryuhoh, China, Fumihiro, Yabuno, Masahiro, Miki, Shigehito, Terai, Hirotaka, Takase, Kan, Endo, Mamoru, Marek, Petr, Filip, Radim, van Loock, Peter, Furusawa, Akira
Publikováno v:
Science 383, 6680 (2024)
A quantum computer with low-error, high-speed quantum operations and capability for interconnections is required for useful quantum computations. A logical qubit called Gottesman-Kitaev-Preskill (GKP) qubit in a single Bosonic harmonic oscillator is
Externí odkaz:
http://arxiv.org/abs/2309.02306
Autor:
Endo, Mamoru, He, Ruofan, Sonoyama, Tatsuki, Takahashi, Kazuma, Kashiwazaki, Takahiro, Umeki, Takeshi, Takasu, Sachiko, Hattori, Kaori, Fukuda, Daiji, Fukui, Kosuke, Takase, Kan, Asavanant, Warit, Marek, Petr, Filip, Radim, Furusawa, Akira
Publikováno v:
Optics Express 31, 12865-12879 (2023)
In the field of continuous-variable quantum information processing, non-Gaussian states with negative values of the Wigner function are crucial for the development of a fault-tolerant universal quantum computer. While several non-Gaussian states have
Externí odkaz:
http://arxiv.org/abs/2301.09871