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检索条件"机构=Ntt Computer and Data Science Laboratories"
163 条 记 录,以下是151-160 订阅
排序:
Requirements for fault-tolerant quantum computation with cavity-QED-based atom-atom gates mediated by a photon with a finite pulse length
arXiv
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arXiv 2021年
作者: Asaoka, Rui Tokunaga, Yuuki Kanamoto, Rina Goto, Hayato Aoki, Takao Computer and Data Science Laboratories NTT Corporation Musashino180-8585 Japan Department of Physics Meiji University Kanagawa Kawasaki214-8571 Japan Corporate Research and Development Center Toshiba Corporation Kanagawa Kawasaki212-8582 Japan Department of Applied Physics Waseda University Shinjuku Tokyo169-8555 Japan
We analyze the requirements for fault-tolerant quantum computation with atom-atom gates based on cavity quantum electrodynamics (cQED) mediated by a photon with a finite pulse length. For short photon pulses, the dist... 详细信息
来源: 评论
Dual-GSE: Resource-efficient Generalized Quantum Subspace Expansion
arXiv
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arXiv 2023年
作者: Yang, Bo Yoshioka, Nobuyuki Harada, Hiroyuki Hakkaku, Shigeo Tokunaga, Yuuki Hakoshima, Hideaki Yamamoto, Kaoru Endo, Suguru LIP6 Sorbonne Université 4 Place Jussieu Paris75005 France Graduate School of Information Science and Technology The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo113-8656 Japan Department of Applied Physics School of Engineering University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo113-8656 Japan Wako-shi Saitama351-0198 Japan JST PRESTO 4-1-8 Honcho Kawaguchi Saitama332-0012 Japan Department of Applied Physics and Physico-Informatics Keio University Hiyoshi 3-14-1 Kohoku Yokohama223-8522 Japan NTT Computer and Data Science Laboratories NTT Corporation 3-9-11 Midori-cho Musashino-shi Tokyo180-8585 Japan Center for Quantum Information and Quantum Biology Osaka University 1-3 Machikaneyama Toyonaka Osaka560-8531 Japan
There are considerable obstacles against realizing practical quantum computing: a significant amount of computation errors and the restricted qubit count. As a unified method of noise-agnostic quantum error mitigation... 详细信息
来源: 评论
Error-Mitigated Quantum Metrology via Virtual Purification
arXiv
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arXiv 2021年
作者: Yamamoto, Kaoru Endo, Suguru Hakoshima, Hideaki Matsuzaki, Yuichiro Tokunaga, Yuuki NTT Computer and Data Science Laboratories NTT Corporation Musashino180-8585 Japan JST PRESTO 4-1-8 Honcho Kawaguchi Saitama332-0012 Japan Central2 1-1-1 Umezono Ibaraki Tsukuba305-8568 Japan Center for Quantum Information and Quantum Biology Osaka University 1-2 Machikaneyama Toyonaka560-0043 Japan Ibaraki Tsukuba305-8568 Japan
Quantum metrology with entangled resources aims to achieve sensitivity beyond the standard quantum limit by harnessing quantum effects even in the presence of environmental noise. So far, sensitivity has been mainly d... 详细信息
来源: 评论
Perturbative quantum simulation
arXiv
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arXiv 2021年
作者: Sun, Jinzhao Endo, Suguru Lin, Huiping Hayden, Patrick Vedral, Vlatko Yuan, Xiao Center on Frontiers of Computing Studies Peking University Beijing100871 China Clarendon Laboratory University of Oxford Parks Road OxfordOX1 3PU United Kingdom Quantum Advantage Research Beijing100080 China NTT Computer & Data Science Laboratories NTT Corporation Musashino Tokyo180-8585 Japan School of Computer Science Peking University Beijing100871 China Stanford Institute for Theoretical Physics Stanford University StanfordCA94305 United States Centre for Quantum Technologies National University of Singapore Singapore117543 Singapore
Approximation based on perturbation theory is the foundation for most of the quantitative predictions of quantum mechanics, whether in quantum many-body physics, chemistry, quantum field theory or other domains. Quant... 详细信息
来源: 评论
Quantum error mitigation for rotation-symmetric bosonic codes with symmetry expansion
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Physical Review A 2025年 第6期111卷 062402-062402页
作者: Suguru Endo Yasunari Suzuki Kento Tsubouchi Rui Asaoka Kaoru Yamamoto Yuichiro Matsuzaki Yuuki Tokunaga NTT Computer and Data Science Laboratories NTT Corporation Musashino 180-8585 Tokyo Japan Department of Applied Physics University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan Research Center for Emerging Computing Technologies National Institute of Advanced Industrial Science and Technology (AIST) Central2 1-1-1 Umezono Tsukuba Ibaraki 305-8568 Japan NEC-AIST Quantum Technology Cooperative Research Laboratory National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba Ibaraki 305-8568 Japan
The rotation symmetric bosonic code (RSBC) is a unified framework of practical bosonic codes that have rotation symmetries, such as cat codes and binomial codes. While cat and binomial codes achieve the breakeven poin...
来源: 评论
Hunting for quantum-classical crossover in condensed matter problems
arXiv
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arXiv 2022年
作者: Yoshioka, Nobuyuki Okubo, Tsuyoshi Suzuki, Yasunari Koizumi, Yuki Mizukami, Wataru Department of Applied Physics University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo113-8656 Japan Saitama Wako-shi351-0198 Japan JST PRESTO 4-1-8 Honcho Saitama Kawaguchi332-0012 Japan Institute for Physics of Intelligence University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo113-0033 Japan NTT Computer and Data Science Laboratories Musashino180-8585 Japan Center for Quantum Information and Quantum Biology Osaka University 1-2 Machikaneyama Osaka Toyonaka560-0043 Japan Graduate School of Engineering Science Osaka University 1-3 Machikaneyama Osaka Toyonaka560-8531 Japan
The intensive pursuit for quantum advantage in terms of computational complexity has further led to a modernized crucial question: When and how will quantum computers outperform classical computers? The next milestone... 详细信息
来源: 评论
Boltzmann machine learning with a variational quantum algorithm
arXiv
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arXiv 2020年
作者: Shingu, Yuta Seki, Yuya Watabe, Shohei Endo, Suguru Matsuzaki, Yuichiro Kawabata, Shiro Nikuni, Tetsuro Hakoshima, Hideaki Department of Physics Faculty of Science Division I Tokyo University of Science Shinjuku Tokyo162-8601 Japan 1-1-1 Umezono Ibaraki Tsukuba305-8568 Japan Department of Materials University of Oxford Parks Road OxfordOX1 3PH United Kingdom NTT Computer Data Science Laboratories NTT Corporation Musashino Tokyo180-8585 Japan
A Boltzmann machine is a powerful tool for modeling probability distributions that govern the training data. A thermal equilibrium state is typically used for the Boltzmann machine learning to obtain a suitable probab... 详细信息
来源: 评论
Quantifying fermionic nonlinearity of quantum circuits
arXiv
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arXiv 2021年
作者: Hakkaku, Shigeo Tashima, Yuichiro Mitarai, Kosuke Mizukami, Wataru Fujii, Keisuke Graduate School of Engineering Science Osaka University 1-3 Machikaneyama Osaka Toyonaka560-8531 Japan NTT Computer and Data Science Laboratories NTT Corporation 3-9-11 Midoricho Musashino180-8585 Japan Center for Quantum Information and Quantum Biology Osaka University 1-2 Machikaneyama Toyonaka560-0043 Japan JST PRESTO 4-1-8 Honcho Saitama Kawaguchi332-0012 Japan Hirosawa 2-1 Saitama Wako351-0198 Japan Fujitsu Quantum Computing Joint Research Division QIQB Osaka University 1-2 Machikaneyama Toyonaka560-0043 Japan
Variational quantum algorithms (VQAs) have been proposed as one of the most promising approaches to demonstrate quantum advantage on noisy intermediate-scale quantum (NISQ) devices. However, it has been unclear whethe... 详细信息
来源: 评论
Generalized quantum subspace expansion
arXiv
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arXiv 2021年
作者: Yoshioka, Nobuyuki Hakoshima, Hideaki Matsuzaki, Yuichiro Tokunaga, Yuuki Suzuki, Yasunari Endo, Suguru Department of Applied Physics University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo113-8656 Japan Wako-shi Saitama351-0198 Japan 1-1-1 Umezono Ibaraki Tsukuba305-8568 Japan Center for Quantum Information and Quantum Biology Osaka University 1-3 Machikaneyama Toyonaka Osaka560-8531 Japan Ibaraki Tsukuba305-8568 Japan NTT Computer and Data Science Laboratories NTT Corporation Musashino180-8585 Japan JST PRESTO 4-1-8 Honcho Kawaguchi Saitama332-0012 Japan
One of the major challenges for erroneous quantum computers is undoubtedly the control over the effect of noise. Considering the rapid growth of available quantum resources that are not fully fault-tolerant, it is cru... 详细信息
来源: 评论
Quantum Circuits for Exact Unitary t-Designs and Applications to Higher-Order Randomized Benchmarking
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PRX Quantum 2021年 第3期2卷 030339-030339页
作者: Yoshifumi Nakata Da Zhao Takayuki Okuda Eiichi Bannai Yasunari Suzuki Shiro Tamiya Kentaro Heya Zhiguang Yan Kun Zuo Shuhei Tamate Yutaka Tabuchi Yasunobu Nakamura Photon Science Center Graduate School of Engineering The University of Tokyo Bunkyo-ku Tokyo 113–8656 Japan JST PRESTO 4–1–8 Honcho Kawaguchi Saitama 332–0012 Japan School of Mathematical Sciences Shanghai Jiao Tong University Shanghai 400240 China Department of Mathematics Hiroshima University 1-3-1 Kagamiyama Higashihiroshima 739-8562 Japan Faculty of Mathematics Kyushu University (emeritus) Fukuoka 819-0385 Japan Mathematics Division National Center for Theoretical Sciences National Taiwan University Taipei 10617 Taiwan NTT Computer and Data Science Laboratories NTT Corporation Musashino 180-8585 Japan Department of Applied Physics Graduate School of Engineering The University of Tokyo 7-3-1 Hongo Bynkyo-ku Tokyo 113-8656 Japan Research Center for Advanced Science and Technology (RCAST) The University of Tokyo Meguro-ku Tokyo 153-8904 Japan RIKEN Center for Quantum Computing (RQC) Wako Saitama 351-0198 Japan
A unitary t-design is a powerful tool in quantum information science and fundamental physics. Despite its usefulness, only approximate implementations were known for general t. In this paper, we provide quantum circui... 详细信息
来源: 评论