Yokoyama Shuichiro

Affiliation and department：
Job title：助教

Research field (1)： Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

Research theme for competitive and other funds (9)：

2024 - 2028 The Primordial Black Hole Universe Explored by Precise Theory and Various Astronomical Observations
2023 - 2028 Detailed investigation of the standard cosmological model with large galaxy imaging surveys
2020 - 2024 Exploring the origin of cosmic acceleration using the final data from Subaru HSC
2020 - 2023 精密宇宙論時代における初期揺らぎの統計的性質の徹底解明と超高エネルギー物理の検証
2018 - 2020 原始ブラックホール形成過程の精査とその観測的検証

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Papers (117)：

Ryoto Inui, Cristian Joana, Hayato Motohashi, Shi Pi, Yuichiro Tada, Shuichiro Yokoyama. Primordial black holes and induced gravitational waves from logarithmic non-Gaussianity. Journal of Cosmology and Astroparticle Physics. 2025. 2025. 03. 021-021
Ryoto Inui, Hayato Motohashi, Shi Pi, Yuichiro Tada, Shuichiro Yokoyama. Constant roll and non-Gaussian tail in light of logarithmic duality. Journal of Cosmology and Astroparticle Physics. 2025. 2025. 02. 042-042
Katsuya T. Abe, Ryoto Inui, Yuichiro Tada, Shuichiro Yokoyama. Primordial black holes and gravitational waves induced by exponential-tailed perturbations. Journal of Cosmology and Astroparticle Physics. 2023. 2023. 05. 044-044
Shun Arai, Katsuki Aoki, Yuji Chinone, Rampei Kimura, Tsutomu Kobayashi, Hironao Miyatake, Daisuke Yamauchi, Shuichiro Yokoyama, Kazuyuki Akitsu, Takashi Hiramatsu, et al. Cosmological gravity probes: connecting recent theoretical developments to forthcoming observations. Progress of Theoretical and Experimental Physics. 2023. 2023. 7
Tomohiro Fujita, Yuto Minami, Maresuke Shiraishi, Shuichiro Yokoyama. Can primordial parity violation explain the observed cosmic birefringence?. Physical Review D. 2022. 106. 10

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MISC (8)：

LIGO Detected Primordial Black Holes?. 2017. 72. 10. 723-727
Kenji Hasegawa, Shinsuke Asaba, Kiyotomo Ichiki, Akio K. Inoue, Susumu Inoue, Tomoaki Ishiyama, Hayato Shimabukuro, Keitaro Takahashi, Hiroyuki Tashiro, Hidenobu Yajima, et al. Japanese Cosmic Dawn/Epoch of Reionization Science with the Square Kilometre Array. 2016
島袋隼士, 吉浦伸太郎, 高橋慶太郎, 横山修一郎, 市來淨與. Studying 21cm power spectrum with one-point statistics. 日本天文学会年会講演予稿集. 2015. 2015
島袋隼士, 吉浦伸太郎, 高橋慶太郎, 横山修一郎, 市來淨與. 21cmバイスペクトルを用いた輝度温度場解析. 日本天文学会年会講演予稿集. 2015. 2015
Inoue Susumu, Shimabukuro Hayato, Ichiki Kiyotomo, Yokoyama Shuichiro. 27aBB-6 Probing the Small-Scale Power Spectrum of Cosmic Primordial Density Fluctuations through the High-Redshift 21cm Forest. Meeting abstracts of the Physical Society of Japan. 2013. 68. 1. 129-129

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