399 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of KochiJP206 papers
- The University of TokyoJP86 papers
- Kansai UniversityJP69 papers
- University of CoimbraPT69 papers
- High Energy Accelerator Research OrganizationJP48 papers
- Tokyo City UniversityJP45 papers
- University of UtahUS45 papers
- Yonsei UniversityKR45 papers
- Université Libre de BruxellesBE44 papers
- Kyoto UniversityJP41 papers
- The University of OsakaJP39 papers
- Tokyo Institute of TechnologyJP38 papers
23 papers · 1 filter
Hidden Pseudogap and Excitation Spectra in a Strongly Coupled Two-Band Superfluid/Superconductor
Hiroyuki Tajima, Pierbiagio Pieri, Andrea Perali
We investigate single-particle excitation properties in the normal state of a two-band superconductor or superfluid throughout the Bardeen-Cooper-Schrieffer (BCS) to Bose-Einstein-…
The Cosmic-Ray Composition between 2 PeV and 2 EeV Observed with the TALE Detector in Monocular Mode
Telescope Array Collaboration
We report on a measurement of the cosmic ray composition by the Telescope Array Low-Energy Extension (TALE) air fluorescence detector (FD). By making use of the Cherenkov light sig…
Cooper Triples in Attractive Three-Component Fermions: Implication for Hadron-Quark Crossover
Hiroyuki Tajima, Shoichiro Tsutsui, Takahiro M. Doi +1
We investigate many-body properties of equally populated three-component fermions with attractive three-body contact interaction in one dimension. A diagrammatic approach suggests…
New Abelian-like monopoles and the dual Meissner effect
Atsuki Hiraguchi, Katsuya Ishiguro, Tsuneo Suzuki
Violation of non-Abelian Bianchi identity can be regarded as Abelian-like monopole currents in the continuum SU(N) QCD. Three Abelian-like monopoles, when defined in SU(2)…
Extracting non-local inter-polaron interactions from collisional dynamics
Junichi Takahashi, Hiroyuki Tajima, Eiji Nakano +1
This study develops a novel experimental method of deducing the profile of interaction induced between impurities in a trapped gas of ultracold Fermi/Bose atoms, which are often re…
Observations of the Origin of Downward Terrestrial Gamma-Ray Flashes
J. W. Belz, P. R. Krehbiel, J. Remington +137
In this paper we report the first close, high-resolution observations of downward-directed terrestrial gamma-ray flashes (TGFs) detected by the large-area Telescope Array cosmic ra…
The ground state of polaron in an ultracold dipolar Fermi gas
Kazuya Nishimura, Eiji Nakano, Kei Iida +3
An impurity atom immersed in an ultracold atomic Fermi gas can form a quasiparticle, so-called Fermi polaron, due to impurity-fermion interaction. We consider a three-dimensional h…
Mechanism of screening or enhancing the pseudogap throughout the two-band Bardeen-Cooper-Schrieffer to Bose-Einstein condensate crossover
Hiroyuki Tajima, Yuriy Yerin, Pierbiagio Pieri +1
We demonstrate the rise-and-fall of multiple pseudogaps in the Bardeen-Cooper-Schrieffer-Bose-Einstein-condensation (BCS-BEC) crossover in two-band fermionic systems having differe…
Search for Large-scale Anisotropy on Arrival Directions of Ultra-high-energy Cosmic Rays Observed with the Telescope Array Experiment
Telescope Array Collaboration, R. U. Abbasi, M. Abe +141
Motivated by the detection of a significant dipole structure in the arrival directions of ultrahigh-energy cosmic rays above 8 EeV reported by the Pierre Auger Observatory (Auger),…
Hybrid stars from a three-flavor NJL model with two kinds of tensor condensates
M. Morimoto, Y. Tsue, J. da Providencia +2
To obtain the equation of state of quark matter and construct hybrid stars, we calculate the thermodynamic potential in the three-flavor Nambu-Jona-Lasinio model including the tens…
Evidence for a Supergalactic Structure of Magnetic Deflection Multiplets of Ultra-High Energy Cosmic Rays
Telescope Array Collaboration, R. U. Abbasi, M. Abe +140
Evidence for a large-scale supergalactic cosmic ray multiplet (arrival directions correlated with energy) structure is reported for ultra-high energy cosmic ray (UHECR) energies ab…
Finite-Density Massless Two-Color QCD at Isospin Roberge-Weiss Point and 't Hooft Anomaly
Takuya Furusawa, Yuya Tanizaki, Etsuko Itou
We study the phase diagram of two-flavor massless two-color QCD (QCD) under the presence of quark chemical potentials and imaginary isospin chemical potentials. At the special…
Measurement of the Proton-Air Cross Section with Telescope Array's Black Rock Mesa and Long Ridge Fluorescence Detectors, and Surface Array in Hybrid Mode
R. U. Abbasi, M. Abe, T. Abu-Zayyad +140
Ultra high energy cosmic rays provide the highest known energy source in the universe to measure proton cross sections. Though conditions for collecting such data are less controll…
Lattice model with twisted boundary condition: bions, adiabatic continuity and pseudo-entropy
Toshiaki Fujimori, Etsuko Itou, Tatsuhiro Misumi +2
We investigate the lattice sigma model on (large) (small) with the symmetric twisted boundary condition, where…
Low-Dimensional Fluctuations and Pseudogap in Gaudin-Yang Fermi Gases
Hiroyuki Tajima, Shoichiro Tsutsui, Takahiro M. Doi
Pseudogap is a ubiquitous phenomenon in strongly correlated systems such as high- superconductors, ultracold atoms and nuclear physics. While pairing fluctuations induci…
Quasiparticle properties of a single alpha particle in cold neutron matter
Eiji Nakano, Kei Iida, Wataru Horiuchi
Light clusters such as alpha particles and deuterons are predicted to occur in hot nuclear matter as encountered in intermediate-energy heavy-ion collisions and protoneutron stars.…
Sparse modeling approach to obtaining the shear viscosity from smeared correlation functions
Etsuko Itou, Yuki Nagai
We propose the sparse modeling method to estimate the spectral function from the smeared correlation functions. We give a description of how to obtain the shear viscosity from the…
Non-Hermitian Ferromagnetism in an Ultracold Fermi Gas
Hiroyuki Tajima, Kei Iida
We develop a non-Hermitian effective theory for a repulsively interacting Fermi gas in the excited branch. The on-shell -matrix is employed as a complex-valued interaction term,…
Non-zero tensor condensates in cold quark matter within the three-flavor Nambu-Jona-Lasinio model with the Kobayashi-Maskawa-'t Hooft interaction
A. Kagawa, M. Morimoto, Y. Tsue +3
The possible formation of tensor condensates originated from a tensor-type interaction between quarks is investigated in the three-flavor Nambu-Jona-Lasinio model including the Kob…
Coulomb screening correction to the value of the triple alpha process in thermal plasmas
Lai Hnin Phyu, H. Moriya, W. Horiuchi +3
The triple alpha reaction is a key to C production and is expected to occur in weakly-coupled, thermal plasmas as encountered in normal stars. We investigate how Coulomb scr…
Mesoscopic spin transport between strongly interacting Fermi gases
Yuta Sekino, Hiroyuki Tajima, Shun Uchino
We investigate a mesoscopic spin current for strongly interacting Fermi gases through a quantum point contact. Under the situation where spin polarizations in left and right reserv…
BCS-BEC Crossover and Pairing Fluctuations in a Two Band Superfluid/Superconductor: A T Matrix Approach
Hiroyuki Tajima, Andrea Perali, Pierbiagio Pieri
We investigate pairing fluctuation effects in a two band fermionic system, where a shallow band in the Bardeen--Cooper--Schrieffer--Bose--Einstein condensation (BCS-BEC) crossover…
Goldstino spectrum in an ultracold Bose-Fermi mixture with explicitly broken supersymmetry
Hiroyuki Tajima, Yoshimasa Hidaka, Daisuke Satow
We theoretically investigate a supersymmetric collective mode called Goldstino in a Bose-Fermi mixture. The explicit supersymmetry breaking, which is unavoidable in cold atom exper…