613 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The University of TokyoJP226 papers
- Kyoto UniversityJP134 papers
- High Energy Accelerator Research OrganizationJP109 papers
- Kavli Institute for the Physics and Mathematics of the UniverseJP104 papers
- Institute for Cosmic Ray ResearchJP97 papers
- Kobe UniversityJP87 papers
- Nagoya UniversityJP86 papers
- Tokyo Institute of TechnologyJP79 papers
- Miyagi University of EducationJP77 papers
- Centre National de la Recherche ScientifiqueFR76 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PadovaIT76 papers
- Tohoku UniversityJP71 papers
50 papers · 1 filter
Direct Measurement of the Cosmic-Ray Carbon and Oxygen Spectra from 10 GeV to 2.2 TeV with the Calorimetric Electron Telescope on the International Space Station
O. Adriani, Y. Akaike, K. Asano +81
In this paper, we present the measurement of the energy spectra of carbon and oxygen in cosmic rays based on observations with the Calorimetric Electron Telescope (CALET) on the In…
Neutron-Antineutron Oscillation Search using a 0.37 MegatonYear Exposure of Super-Kamiokande
Kamiokande Collaboration, K. Abe, C. Bronner +196
As a baryon number violating process with , neutron-antineutron oscillation () provides a unique test of baryon number conservation. We have performed a search fo…
First measurement using a nuclear emulsion detector of the charged-current cross section on iron around the 1GeV energy region
H. Oshima, T. Matsuo, A. Ali +43
We have carried out charged-current interaction measurement on iron using an emulsion detector exposed to the T2K neutrino beam in the J-PARC neutrino facility. The data samp…
A new type of quantum walks based on decomposing quantum states
Chusei Kiumi
In this paper, the 2-state decomposed-type quantum walk (DQW) on a line is introduced as an extension of the 2-state quantum walk (QW). The time evolution of the DQW is defined wit…
Spin Seebeck Effect in Nonmagnetic Excitonic Insulators
Joji Nasu, Makoto Naka
We propose a mechanism of the spin Seebeck effect attributed to excitonic condensation in a nonmagnetic insulator. We analyze a half-filled two-orbital Hubbard model with a crystal…
Demonstration of the nearly continuous operation of an Yb optical lattice clock for half a year
Takumi Kobayashi, Daisuke Akamatsu, Kazumoto Hosaka +6
Optical lattice clocks surpass primary Cs microwave clocks in frequency stability and accuracy, and are promising candidates for a redefinition of the second in the International S…
Evidence for pressure induced unconventional quantum criticality in the coupled spin ladder antiferromagnet CHNCuBr
Tao Hong, Tao Ying, Qing Huang +15
Quantum phase transitions in quantum matter occur at zero temperature between distinct ground states by tuning a nonthermal control parameter. Often, they can be accurately describ…
Topological Phase Transition Induced by Image Potential States in MXenes: A Theoretical Investigation
Mengying Wang, Mohammad Khazaei, Yoshiyuki Kawazoe +1
MXenes, a family of two-dimensional transition metal carbides and nitrides, have various tunable physical and chemical properties. Their diverse prospective applications in electro…
Eigenvalues of two-phase quantum walks with one defect in one dimension
Chusei Kiumi, Kei Saito
We study space-inhomogeneous quantum walks (QWs) on the integer lattice which we assign three different coin matrices to the positive part, the negative part, and the origin, respe…
Improved Frequency Ratio Measurement with 87Sr and 171Yb Optical Lattice Clocks at NMIJ
Yusuke Hisai, Daisuke Akamatsu, Takumi Kobayashi +4
We report improved frequency ratio measurement with Sr and Yb optical lattice clocks at the National Metrology Institute of Japan (NMIJ). The Sr optical latti…
Two-photon comb with wavelength conversion and 20-km distribution for quantum communication
Kazuya Niizeki, Daisuke Yoshida, Ko Ito +6
Quantum computing and quantum communication, have been greatly developed in recent years and expected to contribute to quantum internet technologies, including cloud quantum comput…
Search for proton decay via and with an enlarged fiducial volume in Super-Kamiokande I-IV
Kamiokande Collaboration, A. Takenaka, K. Abe +211
We have searched for proton decay via and modes with the enlarged fiducial volume data of Super-Kamiokande from April 1996 to May 2018, which correspond…
An adiabatic superconductor comparator with 46 nA sensitivity
Naoki Takeuchi, Taiki Yamae, Hideo Suzuki +1
Adiabatic quantum-flux-parametron (AQFP) circuits can operate with extremely small energy dissipation (~1 zJ per junction at 5 GHz) and high sensitivity (~1 μA) owing to adiabatic…
Analyzing Adaptive Parameter Landscapes in Parameter Adaptation Methods for Differential Evolution
Ryoji Tanabe
Since the scale factor and the crossover rate significantly influence the performance of differential evolution (DE), parameter adaptation methods (PAMs) for the two parameters hav…
The SuperFGD Prototype Charged Particle Beam Tests
A. Blondel, M. Bogomilov, S. Bordoni +47
A novel scintillator detector, the SuperFGD, has been selected as the main neutrino target for an upgrade of the T2K experiment ND280 near detector. The detector design will allow…
Impedance Design of Excitation Lines in Adiabatic Quantum-Flux-Parametron Logic Using InductEx
Naoki Takeuchi, Hideo Suzuki, Coenrad J. Fourie +1
The adiabatic quantum-flux-parametron (AQFP) is an energy-efficient superconductor logic family that utilizes adiabatic switching. AQFP gates are powered and clocked by ac excitati…
Relation between transition density and proton inelastic scattering by C target at 65 and 200 MeV
T. Furumoto, M. Takashina
We calculate proton elastic and inelastic scatterings with a microscopic coupled channel (MCC) calculation. The localized diagonal and coupling potentials including the spin-orbit…
Generalized eigenfunctions for quantum walks via path counting approach
Takashi Komatsu, Norio Konno, Hisashi Morioka +1
We consider the time-independent scattering theory for time evolution operators of one-dimensional two-state quantum walks. The scattering matrix associated with the position-depen…
Algorithms to enumerate superspecial Howe curves of genus 4
Momonari Kudo, Shushi Harashita, Everett W. Howe
A Howe curve is a curve of genus obtained as the fiber product of two genus- double covers of . In this paper, we present a simple algorithm for testing isomor…
Ultrastrong Magnon-Magnon Coupling Dominated by Antiresonant Interactions
Takuma Makihara, Kenji Hayashida, G. Timothy Noe +13
Exotic quantum vacuum phenomena are predicted in cavity quantum electrodynamics (QED) systems with ultrastrong light-matter interactions. Their ground states are predicted to be va…
T2K measurements of muon neutrino and antineutrino disappearance using protons on target
K. Abe, N. Akhlaq, R. Akutsu +311
We report measurements by the T2K experiment of the parameters and which govern the disappearance of muon neutrinos and antineutrinos in the three-flavor PMNS…
First measurement of and charged-current inclusive interactions on water using a nuclear emulsion detector
A. Hiramoto, Y. Suzuki, A. Ali +40
This paper reports the track multiplicity and kinematics of muons, charged pions, and protons from charged-current inclusive and interactions on a water target, mea…
Achieving highly strengthened Al-Cu-Mg alloy by grain refinement and grain boundary segregation
Takahiro Masuda, Xavier Sauvage, Shoichi Hirosawa +1
An age-hardenable Al-Cu-Mg alloy (A2024) was processed by high-pressure torsion (HPT) for producing an ultrafine-grained structure. The alloy was further aged for extra strengtheni…
Quantum search of matching on signed graphs
Etsuo Segawa, Yusuke Yoshie
We construct a quantum searching model of a signed edge driven by a quantum walk. The time evolution operator of this quantum walk provides a weighted adjacency matrix induced by t…