246 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Mizuho (Japan)JP9 papers
- Keio UniversityJP8 papers
- IBM Research - TokyoJP6 papers
- Mitsubishi UFJ Financial Group, Inc. (Japan)JP6 papers
- Sumitomo Mitsui Banking CorporationJP3 papers
- Josai Junior CollegeJP1 paper
- Kansai UniversityJP1 paper
- Sony Computer Science LaboratoriesJP1 paper
- Sophia UniversityJP1 paper
- The University of TokyoJP1 paper
10 papers
Generative model for learning quantum ensemble via optimal transport loss
Hiroyuki Tezuka, Shumpei Uno, Naoki Yamamoto
Generative modeling is an unsupervised machine learning framework, that exhibits strong performance in various machine learning tasks. Recently we find several quantum version of g…
Efficient quantum readout-error mitigation for sparse measurement outcomes of near-term quantum devices
Bo Yang, Rudy Raymond, Shumpei Uno
The readout error on near-term quantum devices is one of the dominant noise factors, which can be mitigated by classical postprocessing called quantum readout error mitigation (QRE…
Noisy quantum amplitude estimation without noise estimation
Tomoki Tanaka, Shumpei Uno, Tamiya Onodera +2
Many quantum algorithms contain an important subroutine, the quantum amplitude estimation. As the name implies, this is essentially the parameter estimation problem and thus can be…
Approximate amplitude encoding in shallow parameterized quantum circuits and its application to financial market indicator
Kouhei Nakaji, Shumpei Uno, Yohichi Suzuki +6
Efficient methods for loading given classical data into quantum circuits are essential for various quantum algorithms. In this paper, we propose an algorithm called Approximate Amp…
Modified Grover operator for amplitude estimation
Shumpei Uno, Yohichi Suzuki, Keigo Hisanaga +4
In this paper, we propose a quantum amplitude estimation method that uses a modified Grover operator and quadratically improves the estimation accuracy in the ideal case, as in the…
Space-time breather solution for nonlinear Klein-Gordon equations
Yasuhiro Takei, Yoritaka Iwata
Klein-Gordon equations describe the dynamics of waves/particles in sub-atomic scales. For nonlinear Klein-Gordon equations, their breather solutions are usually known as time perio…
Amplitude estimation via maximum likelihood on noisy quantum computer
Tomoki Tanaka, Yohichi Suzuki, Shumpei Uno +3
Recently we find several candidates of quantum algorithms that may be implementable in near-term devices for estimating the amplitude of a given quantum state, which is a core sub-…
Analysis and synthesis of feature map for kernel-based quantum classifier
Yudai Suzuki, Hiroshi Yano, Qi Gao +4
A method for analyzing the feature map for the kernel-based quantum classifier is developed; that is, we give a general formula for computing a lower bound of the exact training ac…
Amplitude estimation without phase estimation
Yohichi Suzuki, Shumpei Uno, Rudy Raymond +3
This paper focuses on the quantum amplitude estimation algorithm, which is a core subroutine in quantum computation for various applications. The conventional approach for amplitud…
Relativistic Corrections to the Sunyaev-Zeldovich Effect for Clusters of Galaxies. V. Effect of the Motion of the Observer
Satoshi Nozawa, Naoki Itoh, Yasuharu Kohyama
We extend the formalism of the relativistic thermal and kinematical Sunyaev-Zeldovich effects to the observer's system (the Solar System) moving with a velocity with respec…