Zobrazeno 1 - 10
of 147
pro vyhledávání: '"SHINGO TAKEUCHI"'
Canonical quantization of the U(1) gauge field in the right Rindler-wedge in the Rindler coordinates
Autor:
Shingo Takeuchi
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 12, Pp 1-21 (2024)
Abstract In this study, the canonical quantization of the U(1) gauge field in the Lorentz-covariant gauge in the right Rindler-wedge (RRW) of the four-dimensional Rindler coordinates is performed. Specifically, we obtain the gauge-fixed Lagrangian by
Externí odkaz:
https://doaj.org/article/4b2a18bac45541b7bb7dfed498ac7a11
Publikováno v:
Progress in Earth and Planetary Science, Vol 11, Iss 1, Pp 1-19 (2024)
Abstract Understanding the relationship between pumice formation and long-term floatability in seawater is becoming increasingly important in terms of eruption dynamics, material cycles, biological and environmental effects, and ocean hazards. Pumice
Externí odkaz:
https://doaj.org/article/d05b6f1a632c4bc9a9f4eeda38c29acc
Publikováno v:
Journal of Applied Volcanology, Vol 11, Iss 1, Pp 1-12 (2022)
Abstract Tephra fallout is a potential hazard to livelihoods, critical infrastructure, and health, even in areas that are far from volcanoes. Therefore, it is important to quantitatively evaluate tephra fall hazards for both residents and infrastruct
Externí odkaz:
https://doaj.org/article/735d596b2f6b45f1a9e8b1adc3c30e9e
Autor:
Shingo Takeuchi
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 12, Pp 1-19 (2021)
Abstract In this study, we consider a gas in the Morris–Thorne traversable wormhole space-time, and analyze the critical temperature of the Bose-Einstein condensate in the vicinity of its throat. Our results show that it is equal to zero. Then, fro
Externí odkaz:
https://doaj.org/article/248909733e62497d9e061a181b105a94
Autor:
Yoshihito Iijima, Shun Iwai, Nozomu Motono, Katsuo Usuda, Akihiro Shioya, Shingo Takeuchi, Shigeki Yamagishi, Kiyoshi Koizumi, Sohsuke Yamada, Hidetaka Uramoto
Publikováno v:
Surgical Case Reports, Vol 7, Iss 1, Pp 1-6 (2021)
Abstract Background Immunoglobulin G4 (IgG4)-related diseases are characterized by abnormal IgG4 levels, swelling, and marked infiltration and fibrosis of the lymphocytes and IgG4-positive plasma cells, causing hypertrophic lesions or nodules. The ca
Externí odkaz:
https://doaj.org/article/ec1cea4a363d4b748bdc0bbfd0a3f363
Autor:
Naoki Sasakura, Shingo Takeuchi
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 2, Pp 1-25 (2020)
Abstract We study a matrix model that has $$\phi _a^i\ (a=1,2,\ldots ,N,\ i=1,2,\ldots ,R)$$ ϕai(a=1,2,…,N,i=1,2,…,R) as its dynamical variable, whose lower indices are pairwise contracted, but upper ones are not always done so. This matrix mode
Externí odkaz:
https://doaj.org/article/1488042ebbb247d18392043469d2f716
Autor:
Shingo Takeuchi
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 7, Pp 1-17 (2019)
Abstract We investigate the dimensional dependence (D-dependence) of the difference (gap) between the critical temperatures associated with the uniform/non-uniform and non-uniform/gapped transitions in the large-N bosonic gauge theories with D matrix
Externí odkaz:
https://doaj.org/article/9d8d1cfff5654d08b8a832f079c1ff55
Publikováno v:
Electrochemistry, Vol 90, Iss 1, Pp 017003-017003 (2022)
Conversion efficiency of a dye-sensitized solar cell (DSC) using poly(3,4-ethylenedioxythiophene) (PEDOT)-coated transparent conducting substrate as a counter electrode was shown to be 7.88 %, which is slightly higher compared to a DSC using classica
Externí odkaz:
https://doaj.org/article/3e3d7a28f14e47a48211065eb34dbf8e
Autor:
Shingo Takeuchi
Publikováno v:
Nuclear Physics B, Vol 921, Iss C, Pp 375-393 (2017)
We carry out the Kerr/CFT correspondence in a four-dimensional extremal rotating regular black hole with a non-linear magnetic monopole (NLMM). One problem in this study would be whether our geometry can be a solution or not. We search for the way ma
Externí odkaz:
https://doaj.org/article/b2b5843702b04d5abcc3329222fe6e56
Autor:
Shingo Takeuchi
Publikováno v:
Physics Letters B, Vol 750, Iss C, Pp 209-217 (2015)
Based on the Unruh effect, we calculate the critical acceleration of the Bose–Einstein condensation in a free complex scalar field at finite density in the Rindler space. Our model corresponds to an ideal gas performing constantly accelerating moti
Externí odkaz:
https://doaj.org/article/04a99bc0800d4d63845db1a644b2a662