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16 papers · 1 filter
Some inequalities for spectral geometric mean with applications
Shigeru Furuichi, Yuki Seo
Recently, the spectral geometric mean has been studied by some papers. In this paper, we firstly estimate the Hölder type inequality of the spectral geometric mean of positive inve…
Inhomogeneous transformations in a gauged twistor formulation of a massive particle
Shinichi Deguchi, Satoshi Okano
In this paper, we show that the mass-shell constraints in the gauged twistor formulation of a massive particle given in [Deguchi and Okano, Phys. Rev. D 93, 045016 (2016) [Erratum…
Study of radon removal performance of silver-ion exchanged zeolite from air for underground experiments
T. Sone, Y. Takeuchi, M. Matsukura +6
Radon is a common background source for underground astroparticle physics experiments and its removal is essential. In this study, we fabricated several prototype silver-ion exchan…
Possibility of BCS-BEC crossover in -type organic superconductors
Hiroshi Watanabe, Hiroaki Ikeda
The realization of BCS-BEC crossover in superconductors, which smoothly connects Bardeen-Cooper-Schrieffer (BCS) theory with Bose-Einstein Condensation (BEC) in fermion systems, is…
Photoluminescence decay of mobile carriers influenced by imperfect quenching at particle surfaces with subdiffusive spread
Ryuzi Katoh, Kazuhiko Seki
We recently presented a quantitative model to explain the particle-size dependence of photoluminescence (PL) quantum yields and revealed that exciton quenching is not diffusion con…
Structural analysis and transport properties of [010]-tilt grain boundaries in Fe(Se,Te)
Kazumasa Iida, Yoshihiro Yamauchi, Takafumi Hatano +10
Understanding the nature of grain boundaries is a prerequisite for fabricating high-performance superconducting bulks and wires. For iron-based superconductors [e.g. Ba(Fe,Co)A…