975 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The University of TokyoJP429 papers
- Kyoto UniversityJP151 papers
- RIKENJP142 papers
- Tokyo Institute of TechnologyJP134 papers
- High Energy Accelerator Research OrganizationJP100 papers
- Tohoku UniversityJP100 papers
- Nagoya UniversityJP97 papers
- The University of OsakaJP96 papers
- Tokyo University of ScienceJP90 papers
- Japan Science and Technology AgencyJP68 papers
- UNSW SydneyAU63 papers
- Centre National de la Recherche ScientifiqueFR62 papers
174 papers · 1 filter
Indication of Another Intermediate-mass Black Hole in the Galactic Center
Shunya Takekawa, Tomoharu Oka, Yuhei Iwata +2
We report the discovery of molecular gas streams orbiting around an invisible massive object in the central region of our Galaxy, based on the high-resolution molecular line observ…
Lattice study of supersymmetry breaking in N=2 supersymmetric quantum mechanics
Daisuke Kadoh, Katsumasa Nakayama
We study supersymmetry breaking from a lattice model of N=2 supersymmetric quantum mechanics using the direct computational method proposed in arXiv:1803.07960. The vanishing Witte…
Irregular parameter dependence of numerical results in tensor renormalization group analysis
Daisuke Kadoh, Yoshinobu Kuramashi, Ryoichiro Ueno
We study the parameter dependence of numerical results obtained by the tensor renormalization group. We often observe an irregular behavior as the parameters are varied with the me…
Quotients of étale groupoids and the abelianizations of groupoid C*-algebras
Fuyuta Komura
In this paper, we introduce quotients of étale groupoids. Using the notion of quotients, we describe the abelianizations of groupoid C*-algebras. As another application, we obtain…
Bezier Simplex Fitting: Describing Pareto Fronts of Simplicial Problems with Small Samples in Multi-objective Optimization
Ken Kobayashi, Naoki Hamada, Akiyoshi Sannai +3
Multi-objective optimization problems require simultaneously optimizing two or more objective functions. Many studies have reported that the solution set of an M-objective optimiza…
Multi-breathers and high order rogue waves for the nonlinear Schrödinger equation on the elliptic function background
Bao-Feng Feng, Liming Ling, Daisuke A. Takahashi
We construct the multi-breather solutions of the focusing nonlinear Schrödinger equation (NLSE) on the background of elliptic functions by the Darboux transformation, and express t…
A Circuit-Level Amoeba-Inspired SAT Solver
N. Takeuchi, M. Aono, Y. Hara-Azumi +1
AmbSAT (or AmoebaSAT) is a biologically-inspired stochastic local search (SLS) solver to explore solutions to the Boolean satisfiability problem (SAT). AmbSAT updates multiple vari…
Partition Functions of Gauge Theories on and Duality
Taro Kimura, Jun Nian, Peng Zhao
We compute the partition functions of gauge theories on using supersymmetric localization. The path integral reduces to a su…
Supersymmetry breaking and ghost Goldstino in modulated vacua
Sven Bjarke Gudnason, Muneto Nitta, Shin Sasaki +1
We discuss spontaneous supersymmetry (SUSY) breaking mechanisms by means of modulated vacua in four-dimensional supersymmetric field theories. The SUSY breaking due t…
Single-spin qubits in isotopically enriched silicon at low magnetic field
R. Zhao, T. Tanttu, K. Y. Tan +13
Single-electron spin qubits employ magnetic fields on the order of 1 Tesla or above to enable quantum state readout via spin-dependent-tunnelling. This requires demanding microwave…
WIMP dark matter in the parity solution to the strong CP problem
Junichiro Kawamura, Shohei Okawa, Yuji Omura +1
We extend the Standard Model (SM) with parity symmetry, motivated by the strong CP problem and dark matter. In our model, parity symmetry is conserved at high energy by introducing…
Electron spin relaxation of single phosphorus donors in metal-oxide-semiconductor nanoscale devices
Stefanie B. Tenberg, Serwan Asaad, Mateusz T. Mądzik +12
We analyze the electron spin relaxation rate of individual ion-implanted P donors, in a large set of metal-oxide-semiconductor (MOS) silicon nanoscale devices, with…
Hamiltonian cubic bipartite graphs
Misa Nakanishi
We provide a polynomial time algorithm to determine a cubic bipartite graph has a hamilton cycle or not.
Topological classification of the single-wall carbon nanotube
Rin Okuyama, Wataru Izumida, Mikio Eto
The single-wall carbon nanotube (SWNT) can be a one-dimensional topological insulator, which is characterized by a -topological invariant, winding number. Using the ana…
Wikipedia2Vec: An Efficient Toolkit for Learning and Visualizing the Embeddings of Words and Entities from Wikipedia
Ikuya Yamada, Akari Asai, Jin Sakuma +4
The embeddings of entities in a large knowledge base (e.g., Wikipedia) are highly beneficial for solving various natural language tasks that involve real world knowledge. In this p…
Tensor network analysis of critical coupling in two dimensional theory
Daisuke Kadoh, Yoshinobu Kuramashi, Yoshifumi Nakamura +3
We make a detailed analysis of the spontaneous -symmetry breaking in the two dimensional real theory with the tensor renormalization group approach, which allows us…
Recurrence times of the Lieb-Liniger model in the weak and strong coupling regimes
Eriko Kaminishi, Takashi Mori
Quantum systems exhibit recurrence phenomena after equilibration, but it is a difficult task to evaluate the recurrence time of a quantum system because it drastically increases as…
Demonstration of vector magnetic field sensing by simultaneous control of nitrogen-vacancy centers in diamond using multi-frequency microwave pulses
Ken Yahata, Yuichiro Matsuzaki, Shiro Saito +2
An ensemble of nitrogen-vacancy (NV) centers in diamond is a fascinating candidate to realize a sensitive magnetic field sensor. In particular, since the axes of the NV centers are…
Thermodynamics for SU(2) pure gauge theory using gradient flow
Takehiro Hirakida, Etsuko Itou, Hiroaki Kouno
We present the scale-setting function and the equation of state of the pure SU(2) gauge theory using the gradient flow method. We propose a reference scale t0 for the SU(2) gauge t…
Current cross-correlation in the Anderson impurity model with exchange interaction
Rui Sakano, Akira Oguri, Yunori Nishikawa +1
We study spin-entanglement of the quasiparticles of the local Fermi liquid excited in nonlinear current through a quantum dot described by the Anderson impurity model with two dege…
Super-resolution reconstruction of turbulent flows with machine learning
Kai Fukami, Koji Fukagata, Kunihiko Taira
We use machine learning to perform super-resolution analysis of grossly under-resolved turbulent flow field data to reconstruct the high-resolution flow field. Two machine-learning…
Massless bosons on domain walls: Jackiw-Rebbi-like mechanism for bosonic fields
Masato Arai, Filip Blaschke, Minoru Eto +1
It is important to obtain (nearly) massless localized modes for the low-energy four-dimensional effective field theory in the brane-world scenario. We propose a mechanism for boson…
Convolutional-Sparse-Coded Dynamic Mode Decomposition and Its Application to River State Estimation
Yuhei Kaneko, Shogo Muramatsu, Hiroyasu Yasuda +4
This work proposes convolutional-sparse-coded dynamic mode decomposition (CSC-DMD) by unifying extended dynamic mode decomposition (EDMD) and convolutional sparse coding. EDMD is a…
Fractional instanton of the SU() gauge theory in weak coupling regime
Etsuko Itou
Motivated by recent studies on the resurgence structure of quantum field theories, we numerically study the nonperturbative phenomena of the SU() gauge theory in a weak coupling…