Detailed Information

Education

• 1997/03, Graduated
• 1999/03, Master Course, Completed
• 2002/03, Doctor Course, Completed

Employment Experience

• 2002/09 - 2004/03
• 2004/04 - 2006/03 Postdoctoral Fellowships of Japan Society for the Promotion of Science
• 2006/04 - 2007/03 Lecturer, Faculty of Science and Engineering, Saga University
• 2007/04 - 2010/03 Associate Professor, Physics, Faculty of Science and Engineering, Saga University
• 2010/04 -  *  Associate Professor, Physics, Graduate School of Science and Engineering, Saga University

Field of Specialization

• Particle/Nuclear/Cosmic ray/Astro physics

Research Topics and Results

• Generalized early dark energy and its cosmological consequences 2024/03
• Testing multi-field inflation with LiteBIRD 2024/03
• Impact of the primordial fluctuation power spectrum on the reionization history 2023/12
• Impact of big bang nucleosynthesis on the H0 tension 2023/11
• Stochastic gravitational wave background from early dark energy 2023/10
• Supermassive primordial black holes: A view from clustering of quasars at z ∼ 6 2023/09
• Ultraviolet sensitivity in Higgs-Starobinsky inflation 2023/08
• Variation of the fine structure constant in light of recent helium abundance measurement 2023/07
• Nonminimally assisted inflation: a general analysis 2023/05
• Big bang nucleosynthesis and early dark energy in light of the EMPRESS Yp results and the H0 tension 2023/05
• Skewness consistency relation in large-scale structure and test of gravity theory 2023/02
• Probing first-order electroweak phase transition via primordial black holes in the effective field theory 2023/01
• Sneutrinos as two inflatons and curvaton and leptogenesis 2022/11
• Multi-chaotic inflation with and without spectator field 2022/07
• Primordial black holes as a probe of strongly first-order electroweak phase transition 2022/06
• Double inflation via non-minimally coupled spectator 2022/06
• Non-minimally assisted chaotic inflation 2022/05
• Probing isocurvature perturbations with 21-cm global signal in the light of HERA result 2022/04
• Relaxing inflation models with nonminimal coupling: A general study 2022/03
• Angular correlation as a novel probe of supermassive primordial black holes 2021/07
• Early recombination as a solution to the H0 tension 2021/04
• The first three seconds: A Review of Possible Expansion Histories of the early Universe 2021/01
• Constraints on primordial power spectrum from galaxy luminosity functions 2020/10
• Violation of slow-roll in nonminimal inflation 2020/08
• Probing small scale primordial power spectrum with 21cm line global signal 2020/04
• Insight into primordial magnetic fields from 21-cm line observation with EDGES experiment 2019/07
• Selecting models of first-order phase transitions using the synergy between collider and gravitational-wave experiments 2019/04
• Towards distinguishing variants of non-minimal inflation 2019/04
• Probing primordial non-Gaussianity with 21 cm fluctuations from minihalos 2019/02
• Probing the Universe through the stochastic gravitational wave background 2018/11
• Impact of EDGES 21-cm global signal on the primordial power spectrum 2018/09
• 21 cm Angular Power Spectrum from Minihalos as a Probe of Primordial Spectral Runnings 2018/02
• Refined Study of Isocurvature Fluctuations in the Curvaton Scenario 2017/12
• New bound on low reheating temperature for dark matter in models with early matter domination 2017/08
• Strongly scale-dependent CMB dipolar asymmetry from super-curvature fluctuations 2016/12
• Matter power spectrum in hidden neutrino interacting dark matter models: a closer look at the collision term 2016/11
• Late-time quantum backreaction of a very light nonminimally coupled scalar 2016/10
• Non-Gaussianity and Baryonic Isocurvature Fluctuations in the Curvaton Scenario 2009/01
• Constraints on neutrino masses from weak lensing 2009/01
• On the Determination of Neutrino Masses and Dark Energy Evolution from the Cross Correlation of CMB and LSS 2008
• Cosmological avatars of the landscape. I: Bracketing the SUSY breaking scale 2008
• The Hubble Constant and Dark Energy from Cosmological Distance Measures 2008
• Primordial Helium Abundance from CMB: a constraint from recent observations and a forecast 2008
• Non-Gaussianity, Spectral Index and Tensor Modes in Mixed Inflaton and Curvaton Models 2008
• Signatures of Non-Gaussianity in the Curvaton Model 2008
• Primordial Curvature Fluctuation and Its Non-Gaussianity in Models with Modulated Reheating 2008
• Probing the effective number of neutrino species with the cosmic microwave background 2008
• Dark Side of the Universe 2007/08
• Free Streaming and Non-Thermally Produced Dark Matter 2007/08
• The Nature of Dark Energy and its Implications for Particle Physics and Cosmology 2007/05
• The Nature of Dark Energy and its Implications for Inflationary Cosmology 2007/03
• Dark Energy Parametrizations and the Curvature of the Universe 2007
• Constraints on Generalized Dark Energy from Recent Observations 2007
• Cosmological avatars of the landscape. II: CMB and LSS signatures 2007
• Shedding light on the Dark Side of the Universe: Implications from CMB and all that 2006/09
• Probing superWIMPy Halos with Gravitational Lensing 2006/05
• Implication of Dark Energy Parametrizations on the Determination of the Curvature of the Universe 2006
• Implications of cosmic strings with time-varying tension on CMB and large scale structure 2006
• Effects of Cosmic Strings on Free Streaming 2006
• Constraining SuperWIMPy and Warm Subhalos with Future Submillilensing 2006

Original Articles

• Generalized early dark energy and its cosmological consequences;　2024/03
  ANNOUNCEMENT INFO.;　Phys.Rev.D 109, 063518 (2024)
  AUTHOR;　Tatsuki Kodama, Takumi Shinohara, Tomo Takahashi
  
• Testing multi-field inflation with LiteBIRD;　2024/03
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 2403, 011 (2024)
  AUTHOR;　Ryusuke Jinno, Kazunori Kohri, Takeo Moroi, Tomo Takahashi and Masashi Hazumi
  
• Impact of the primordial fluctuation power spectrum on the reionization history;　2023/12
  ANNOUNCEMENT INFO.;　Phys.Rev.D 108, 123542 (2023)
  AUTHOR;　Teppei Minoda, Shintaro Yoshiura, and Tomo Takahashi
  
• Impact of big bang nucleosynthesis on the H0 tension;　2023/11
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 2311, 101 (2023)
  AUTHOR;　Tomo Takahashi and Yo Toda
  
• Stochastic gravitational wave background from early dark energy;　2023/10
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 2310, 074 (2023)
  AUTHOR;　Naoya Kitajima and Tomo Takahashi
  
• Supermassive primordial black holes: A view from clustering of quasars at z ∼ 6;　2023/09
  ANNOUNCEMENT INFO.;　Phys.Rev.D 108, 063510 (2023)
  AUTHOR;　Takumi Shinohara, Wanqiu He, Yoshiki Matsuoka, Tohru Nagao, Teruaki Suyama, and Tomo Takahashi
  
• Ultraviolet sensitivity in Higgs-Starobinsky inflation;　2023/08
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 2308, 045 (2023)
  AUTHOR;　Sung Mook Lee, Tanmoy Modak, Kin-ya Oda and Tomo Takahashi
  
• Variation of the fine structure constant in light of recent helium abundance measurement;　2023/07
  ANNOUNCEMENT INFO.;　Phys.Rev.D 108, 023525 (2023)
  AUTHOR;　Osamu Seto, Tomo Takahashi, and Yo Toda
  
• Nonminimally assisted inflation: a general analysis;　2023/05
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 2305, 050 (2023)
  AUTHOR;　Sang Chul Hyun, Jinsu Kim, Tatsuki Kodama, Seong Chan Parka, and Tomo Takahashi
  
• Big bang nucleosynthesis and early dark energy in light of the EMPRESS Yp results and the H0 tension;　2023/05
  ANNOUNCEMENT INFO.;　Phys.Rev.D 107, 103520 (2023)
  AUTHOR;　Tomo Takahashi, Sora Yamashita
  
• Skewness consistency relation in large-scale structure and test of gravity theory;　2023/02
  ANNOUNCEMENT INFO.;　Phys.Rev.D 107, 043526 (2023)
  AUTHOR;　Daisuke Yamauchi, Shoya Ishimaru, Takahiko Matsubara and Tomo Takahashi
  
• Probing first-order electroweak phase transition via primordial black holes in the effective field theory;　2023/01
  ANNOUNCEMENT INFO.;　Physics Letters B838, 137688, 2023
  AUTHOR;　Katsuya Hashino, Shinya Kanemura, Tomo Takahashi, Masanori Tanaka
  
• Sneutrinos as two inflatons and curvaton and leptogenesis;　2022/11
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 2211, 021 (2022)
  AUTHOR;　Tomo Takahashi, Toshifumi Yamada and Shuichiro Yokoyama
  
• Multi-chaotic inflation with and without spectator field;　2022/07
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 2207, 042 (2022)
  AUTHOR;　Yukiyoshi Morishita Tomo Takahashi and Shuichiro Yokoyama
  
• Primordial black holes as a probe of strongly first-order electroweak phase transition;　2022/06
  ANNOUNCEMENT INFO.;　Physics Letters B833, 137261, 2022
  AUTHOR;　Katsuya Hashino, Shinya Kanemura, Tomo Takahashi
  
• Double inflation via non-minimally coupled spectator;　2022/06
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 2206, 016 (2022)
  AUTHOR;　Mio Kubota, Kin-ya Oda, Stanislav Rusak, Tomo Takahashi
  
• Non-minimally assisted chaotic inflation;　2022/05
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 2205, 045 (2022)
  AUTHOR;　Sang Chul Hyun, Jinsu Kim, Seong Chan Park, Tomo Takahashi
  
• Probing isocurvature perturbations with 21-cm global signal in the light of HERA result;　2022/04
  ANNOUNCEMENT INFO.;　Phys.Rev.D 105 (2022) 8, 083523
  AUTHOR;　Teppei Minoda, Shintaro Yoshiura, Tomo Takahashi
  
• Probing the primordial Universe with 21 cm line from cosmic dawn/epoch of reionization;　2022/04
  ANNOUNCEMENT INFO.;　Publications of the Astronomical Society of Japan, 75, S154 (2022)
  AUTHOR;　Teppei Minoda, Shohei Saga, Tomo Takahashi, Hiroyuki Tashiro, Daisuke Yamauchi, Shuichiro Yokoyama and Shintaro Yoshiura
  
• Relaxing inflation models with nonminimal coupling: A general study;　2022/03
  ANNOUNCEMENT INFO.;　Physical Review D105, 063542 (2022)
  AUTHOR;　Tatsuki Kodama and Tomo Takahashi
  
• The R^2-Higgs inflation with two Higgs doublets;　2022/01
  ANNOUNCEMENT INFO.;　Eur.Phys.J.C 82 (2022) 1
  AUTHOR;　Sung Mook Lee, Tanmoy Modak, Kin-ya Oda, Tomo Takahashi
  
• Generalized local ansatz for scale-dependent primordial non-Gaussianities and future galaxy surveys;　2021/12
  ANNOUNCEMENT INFO.;　Publications of the Astronomical Society of Japan, psab108, 2021
  AUTHOR;　Daisuke Yamauchi, Shuichiro Yokoyama, Tomo Takahashi
  
• Angular correlation as a novel probe of supermassive primordial black holes;　2021/07
  ANNOUNCEMENT INFO.;　Physical Review D104, 023526 (2021)
  AUTHOR;　Takumi Shinohara, Teruaki Suyama, Tomo Takahashi
  
• H0 tension without CMB data: Beyond the ΛCDM;　2021/07
  ANNOUNCEMENT INFO.;　Physical Review D104, 023523 (2021)
  AUTHOR;　Fumiya Okamatsu, Toyokazu Sekiguchi, Tomo Takahashi
  
• Cosmological bound on neutrino masses in the light of H0 tension;　2021/04
  ANNOUNCEMENT INFO.;　Physical Review D103, 083516 (2021)
  AUTHOR;　Toyokazu Sekiguchi, Tomo Takahashi
  
• Early recombination as a solution to the H0 tension;　2021/04
  ANNOUNCEMENT INFO.;　Physical Review D103, 083507 (2021)
  AUTHOR;　Toyokazu Sekiguchi, Tomo Takahashi
  
• Blue-tilted inflationary tensor spectrum and reheating in the light of NANOGrav results;　2021/01
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 2101, 071 (2021)
  AUTHOR;　Sachiko Kuroyanagi, Tomo Takahashi and Shuichiro Yokoyama
  
• The first three seconds: A Review of Possible Expansion Histories of the early Universe;　2021/01
  ANNOUNCEMENT INFO.;　The Open Journal of Astrophysics, 4 (2021)
  AUTHOR;　Rouzbeh Allahverdi, ..., Tomo Takahashi, et al.
  
• Structure formation with two periods of inflation: beyond PLaIn Lambda CDM;　2020/10
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 2010, 053 (2020)
  AUTHOR;　Kari Enqvist, Till Sawala, Tomo Takahashi
  
• Constraints on primordial power spectrum from galaxy luminosity functions;　2020/10
  ANNOUNCEMENT INFO.;　Physical Review D102, 083515 (2020)
  AUTHOR;　Shintaro Yoshiura, Masamune Oguri, Keitaro Takahashi, and Tomo Takahashi
  
• Violation of slow-roll in nonminimal inflation;　2020/08
  ANNOUNCEMENT INFO.;　Physical Review D102, 043524 (2020)
  AUTHOR;　Tomo Takahashi, Tommi Tenkanen, and Shuichiro Yokoyama
  
• Constraints on decaying dark matter from weak lensing and cluster counts;　2020/04
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 2004, 015 (2020)
  AUTHOR;　Kari Enqvist, Seshadri Nadathur, Toyokazu Sekiguchi, Tomo Takahashi
  
• Probing small scale primordial power spectrum with 21cm line global signal;　2020/04
  ANNOUNCEMENT INFO.;　Physical review D 101, 083520 (2020)
  AUTHOR;　Shintaro Yoshiura, Keitaro Takahashi and Tomo Takahashi
  
• Smallest halos in thermal wino dark matter;　2019/12
  ANNOUNCEMENT INFO.;　Physical Review D100, 123519 (2019)
  AUTHOR;　Shin’ichiro Ando, Ayuki Kamada, Toyokazu Sekiguchi and Tomo Takahashi
  
• Insight into primordial magnetic fields from 21-cm line observation with EDGES experiment;　2019/07
  ANNOUNCEMENT INFO.;　Mon.Not.R.Astron.Soc. 488, 2001 (2019)
  AUTHOR;　Teppei Minoda, Hiroyuki Tashiro, Tomo Takahashi
  
• Selecting models of first-order phase transitions using the synergy between collider and gravitational-wave experiments;　2019/04
  ANNOUNCEMENT INFO.;　Physical Review D99, 075011 (2019)
  AUTHOR;　Katsuya Hashino, Ryusuke Jinno, Mitsuru Kakizaki, Shinya Kanemura, Tomo Takahashi, Masahiro Takimoto
  
• Towards distinguishing variants of non-minimal inflation;　2019/04
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 1904, 035 (2019)
  AUTHOR;　Tomo Takahashi, Tommi Tenkanen
  
• Probing primordial non-Gaussianity with 21 cm fluctuations from minihalos;　2019/02
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 1902, 033 (2019)
  AUTHOR;　Toyokazu Sekiguchi, Tomo Takahashi, Hiroyuki Tashiro and Shuichiro Yokoyama
  
• Probing the Universe through the stochastic gravitational wave background;　2018/11
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 1811, 038 (2018)
  AUTHOR;　Sachiko Kuroyanagi, Takeshi Chiba and Tomo Takahashi
  
• Impact of EDGES 21-cm global signal on the primordial power spectrum;　2018/09
  ANNOUNCEMENT INFO.;　Physical review D 98, 063529 (2018)
  AUTHOR;　Shintaro Yoshiura, Keitaro Takahashi and Tomo Takahashi
  
• Back-reaction of gravitational waves revisited;　2018/07
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 1807, 040 (2018)
  AUTHOR;　Robert Brandenberger and Tomo Takahashi
  
• Sneutrinos as mixed inflaton and curvaton;　2018/06
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 1806, 011 (2018)
  AUTHOR;　Naoyuki Haba, Tomo Takahashi and Toshifumi Yamada
  
• 21 cm Angular Power Spectrum from Minihalos as a Probe of Primordial Spectral Runnings;　2018/02
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 1802, 053 (2018)
  AUTHOR;　Toyokazu Sekiguchi, Tomo Takahashi, Hiroyuki Tashiro and Shuichiro Yokoyama
  
• Dark matter kinetic decoupling with a light particle;　2018/01
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 1801, 047 (2018)
  AUTHOR;　Ayuki Kamada and Tomo Takahashi
  
• Refined Study of Isocurvature Fluctuations in the Curvaton Scenario;　2017/12
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 1712, 042 (2017)
  AUTHOR;　Naoya Kitajima, David Langlois, Tomo Takahashi and Shuichiro Yokoyama
  
• CMB spectral distortions in generic two-field models;　2017/11
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 1711, 002 (2017)
  AUTHOR;　Kimmo Kainulainen, Juuso Leskinen, Sami Nurmi and Tomo Takahashi
  
• Constraints on long-lived electrically charged massive particles from anomalous strong lens systems;　2017/11
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 1711, 008 (2017)
  AUTHOR;　Ayuki Kamada, Kaiki Taro Inoue, Kazunori Kohri and Tomo Takahashi
  
• New bound on low reheating temperature for dark matter in models with early matter domination;　2017/08
  ANNOUNCEMENT INFO.;　Physical Review D96, 041301 (2017)
  AUTHOR;　Ki-Young Choi and Tomo Takahashi
  
• Elucidating dark energy with future 21 cm observations at the epoch of reionization;　2017/02
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 1702, 024 (2017)
  AUTHOR;　Kazunori Kohri, Yoshihiko Oyama, Toyokazu Sekiguchi, Tomo Takahashi
  
• Effects of electrically charged dark matter on cosmic microwave background anisotropies;　2017/01
  ANNOUNCEMENT INFO.;　Physical Review D95, 023502 (2017)
  AUTHOR;　Ayuki Kamada, Kazunori Kohri, Tomo Takahashi, Naoki Yoshida
  
• Strongly scale-dependent CMB dipolar asymmetry from super-curvature fluctuations;　2016/12
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 1509, 067 (2016)
  AUTHOR;　Christian Byrnes, Guillem Domenech, Misao Sasaki, Tomo Takahashi
  
• Matter power spectrum in hidden neutrino interacting dark matter models: a closer look at the collision term;　2016/11
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 1611, 043 (2016)
  AUTHOR;　Tobias Binder, Laura Covi, Ayuki Kamada, Hitoshi Murayama, Tomo Takahashi, Naoki Yoshida
  
• Late-time quantum backreaction of a very light nonminimally coupled scalar;　2016/10
  ANNOUNCEMENT INFO.;　Physical Review D94, 084053 (2016)
  AUTHOR;　Drazen Glavan, Tomislav Prokopec, Tomo Takahashi
  
• Constraints on mixed dark matter from anomalous strong lens systems;　2016/07
  ANNOUNCEMENT INFO.;　Physical Review D94, 023522 (2016)
  AUTHOR;　Ayuki Kamada, Kaiki Taro Inoue, Tomo Takahashi
  
• Mixed inflaton and spectator field models: CMB constraints and μ distortion;　2016/04
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 1604, 057 (2016)
  AUTHOR;　Kari Enqvist, Toyokazu Sekiguchi, Tomo Takahashi
  
• Decaying dark matter and the tension in sigma_8;　2015/09
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle Physics, 1509, 067 (2015)
  AUTHOR;　Kari Enqvist, Seshadri Nadathur, Toyokazu Sekiguchi, Tomo Takahashi
  
• Constraints on warm dark matter from weak lensing in anomalous quadruple lenses;　2015/04
  ANNOUNCEMENT INFO.;　Monthly Notices of the Royal Astronomical Society, 448, 2704–2716 (2015)
  AUTHOR;　Kaiki Taro Inoue, Ryuichi Takahashi, Tomo Takahashi and Tomoaki Ishiyama
  
• Blue-tilted tensor spectrum and thermal history of the Universe;　2015/02
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 02, 003 (2015)
  AUTHOR;　Sachiko Kuroyanagi, Tomo Takahashi, Shuichiro Yokoyama
  
• Studying inflation with future space-based gravitational wave detectors;　2014/12
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 12, 006 (2014)
  AUTHOR;　Ryusuke Jinno, Takeo Moroi and Tomo Takahashi
  
• CMB μ distortion from primordial gravitational waves;　2014/10
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 10, 029 (2014)
  AUTHOR;　Atsuhisa Ota, Tomo Takahashi, Hiroyuki Tashiroc, and Masahide Yamaguchi
  
• Thermal effects and sudden decay approximation in the curvaton scenario;　2014/10
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 10, 032 (2014)
  AUTHOR;　Naoya Kitajima, David Langlois, Tomo Takahashi, Tomohiro Takesako and Shuichiro Yokoyama
  
• Probing lepton asymmetry with 21 cm fluctuations;　2014/09
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 09, 014 (2014)
  AUTHOR;　Kazunori Kohri, Yoshihiko Oyama, Toyokazu Sekiguchi and Tomo Takahashi
  
• Isocurvature perturbations and tensor mode in light of Planck and BICEP2;　2014/08
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 08, 043 (2014)
  AUTHOR;　Masahiro Kawasaki, Toyokazu Sekiguchi, Tomo Takahashi and Shuichiro Yokoyama
  
• Affleck-Dine baryogenesis with R-parity violation;　2014/08
  ANNOUNCEMENT INFO.;　Physical Review D90, 045001 (2014)
  AUTHOR;　Tetsutaro Higaki, Kazunori Nakayama, Ken’ichi Saikawa, Tomo Takahashi and Masahide Yamaguchi
  
• Probing quintessence potential with future cosmological surveys;　2014/03
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 03, 045 (2014)
  AUTHOR;　Yoshitaka Takeuchi, Kiyotomo Ichiki, Tomo Takahashi and Masahide Yamaguchi
  
• Higher order nonlinear parameters with Planck constraints;　2014/01
  ANNOUNCEMENT INFO.;　Physical Review D89, 023516 (2014)
  AUTHOR;　Jinn-Ouk Gong and Tomo Takahashi
  
• The minimal curvaton-higgs model;　2014/01
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 01, 006 (2014)
  AUTHOR;　Kari Enqvist, Rose N. Lerner, Tomo Takahashi
  
• Precise measurements of primordial power spectrum with 21 cm fluctuations;　2013/10
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 10, 065 (2013)
  AUTHOR;　Kazunori Kohri, Yoshihiko Oyama, Toyokazu Sekiguchi and Tomo Takahashi
  
• Spectator field models in light of spectral index after Planck;　2013/10
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 10, 042 (2013)
  AUTHOR;　Takeshi Kobayashi, Fuminobu Takahashi, Tomo Takahashi and Masahide Yamaguchi
  
• Mixed Inflaton and Spectator Field Models after Planck;　2013/10
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 10, 034 (2013)
  AUTHOR;　Kari Enqvist, Tomo Takahashi
  
• CMB constraint on non-Gaussianity in isocurvature perturbations;　2013/07
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 07, 007 (2013)
  AUTHOR;　Chiaki Hikage, Masahiro Kawasaki,Toyokazu Sekiguchi and Tomo Takahashi
  
• Large Tensor-to-Scalar Ratio in Small-Field Inflation;　2013/06
  ANNOUNCEMENT INFO.;　Physical Review Letters, 110, 231101 (2013)
  AUTHOR;　Takeshi Kobayashi, Tomo Takahashi
  
• Implications of Planck results for models with local type non-Gaussianity;　2013/06
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 06, 012 (2013)
  AUTHOR;　Teruaki Suyama, Tomo Takahashi, Masahide Yamaguchi and Shuichiro Yokoyama
  
• Early universe tomography with CMB and gravitational waves;　2013/04
  ANNOUNCEMENT INFO.;　Physical Review D87, 083502 (2013)
  AUTHOR;　Sachiko Kuroyanagi, Christophe Ringeval, Tomo Takahashi
  
• Density perturbations from modulated decay of the curvaton;　2013/04
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 04, 014 (2013)
  AUTHOR;　David Langlois, Tomo Takahashi
  
• Structure of dark matter halos in warm dark matter models and in models with long-lived charged massive particles;　2013/03
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 03, 008 (2013)
  AUTHOR;　Ayuki Kamada, Naoki Yoshida, Kazunori Kohri, Tomo Takahashi
  
• Extended analysis of CMB constraints on non-gaussianity in isocurvature perturbations;　2013/03
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 03, 020 (2013)
  AUTHOR;　Chiaki Hikage, Masahiro Kawasaki, Toyokazu Sekiguchi, Tomo Takahashi
  
• Generalized Higgs inflation;　2012/07
  ANNOUNCEMENT INFO.;　Physical Review D86, 023504 (2012)
  AUTHOR;　Kohei Kamada, Tsutomu Kobayashi, Tomo Takahashi, Masahide Yamaguchi, Jun’ichi Yokoyama
  
• Runnings in the curvaton;　2012/06
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 06, 004 (2012)
  AUTHOR;　Takeshi Kobayashi, Tomo Takahashi
  
• Dark Radiation from Modulated Reheating.;　2012/03
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 03, 036 (2012)
  AUTHOR;　Takeshi Kobayashi, Fuminobu Takahashi, Tomo Takahashi, Masahide Yamaguchi
  
• Strongly scale-dependent polyspectra from curvaton self-interactions.;　2011/11
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 11, 011 (2011)
  AUTHOR;　Christian T. Byrnes, Kari Enqvist, Sami Nurmi, Tomo Takahashi
  
• Differentiating CDM and Baryon Isocurvature Models with 21 cm Fluctuations.;　2011/10
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 10, 028 (2011)
  AUTHOR;　Masahiro Kawasaki, Toyokazu Sekiguchi, Tomo Takahashi
  
• Higher Order Corrections to the Primordial Gravitational Wave Spectrum and its Impact on Parameter Estimates for Inflation.;　2011/10
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 10, 006 (2011)
  AUTHOR;　Sachiko Kuroyanagi, Tomo Takahashi
  
• Primordial Trispectrum from Isocurvature Fluctuations;　2011/02
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 02, 020 (2011)
  AUTHOR;　David Langlois, and Tomo Takahashi
  
• On Classification of Models of Large Local-Type Non-Gaussianity;　2010/12
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 12, 030 (2010)
  AUTHOR;　Teruaki Suyama, Tomo Takahashi, Masahide Yamaguchi, and Shuichiro Yokoyama
  
• Dark Energy from Primordial Inflationary Quantum Fluctuations;　2010/09
  ANNOUNCEMENT INFO.;　Physical Review Letters, 105, 121301 (2010)
  AUTHOR;　Christophe Ringeval, Teruaki Suyama, Tomo Takahashi, Masahide Yamaguchi, Shuichiro Yokoyama
  
• Scale-dependence of Non-Gaussianity in the Curvaton Model;　2010/09
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 09, 026 (2010)
  AUTHOR;　Christian T. Byrnes, Kari Enqvist, and Tomo Takahashi
  
• Non-Gaussian Fingerprints of Self-Interacting Curvaton;　2010/04
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics VOL.10, NO.4, 009, 2010
  AUTHOR;　Kari Enqvist, Sami Nurmi, Olli Taanila, Tomo Takahashi
  
• Neutrino mass from cosmology: Impact of high-accuracy measurement of the Hubble constant;　2010/03
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics VOL.10, NO.3, 015, 2010
  AUTHOR;　Toyokazu Sekiguchi, Kazuhide Ichikawa, Tomo Takahashi, Lincoln Greenhill
  
• Cosmology with Long-Lived Charged Massive Particles;　2010/01
  ANNOUNCEMENT INFO.;　Physics Letters B682, 337, 2009
  AUTHOR;　Kazunori Kohri, Tomo Takahashi
  
• Effect of Background Evolution on the Curvaton Non-Gaussianity.;　2009/12
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics VOL.9, NO.12, 001, 2009
  AUTHOR;　Kari Enqvist, Tomo Takahashi
  
• Density Fluctuations in Thermal Inflation and Non-Gaussianity.;　2009/12
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics VOL.9, NO.12, 012, 2009
  AUTHOR;　Masahiro Kawasaki, Tomo Takahashi, Shuichiro Yokoyama
  
• The Subdominant Curvaton;　2009/11
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics VOL.9, NO.11, 003, 2009
  AUTHOR;　Kari Enqvist, Sami Nurmi, Gerasimos Rigopoulos, Olli Taanila, Tomo Takahashi
  
• Limits on Isocurvature Perturbations from Non-Gaussianity in WMAP Temperature Anisotropy;　2009/09
  ANNOUNCEMENT INFO.;　Mon.Not.R.Astron.Soc. 398, 2188 (2009)
  AUTHOR;　Chiaki Hikage, Kazuya Koyama, Takahiko Matsubara, Tomo Takahashi, Masahide Yamaguchi
  
• Primordial Non-Gaussianity in Models with Dark Matter Isocurvature Fluctuations;　2009/09
  ANNOUNCEMENT INFO.;　Physical Review D80, 063524, 2009
  AUTHOR;　Tomo Takahashi, Masahide Yamaguchi, Shuichiro Yokoyama
  
• Constraining Light Gravitino Mass from Cosmic Microwave Background.;　2009/08
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics 0908:013, 2009.
  AUTHOR;　Kazuhide Ichikawa, Masahiro Kawasaki, Kazunori Nakayama, Toyokazu Sekiguchi, Tomo Takahashi
  
• Adiabatic fluctuations from cosmic strings in a contracting universe;　2009/07
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics VOL.9, NO.7, 015, 2009
  AUTHOR;　Robert H. Brandenberger, TomoTakahashi and MasahideYamaguchi
  
• Gravitino Dark Matter and Non-Gaussianity;　2009/06
  ANNOUNCEMENT INFO.;　Physics Letters B671, 339, 2009
  AUTHOR;　Tomo Takahashi, Masahide Yamaguchi, Jun'ichi Yokoyama, Shuichiro Yokoyama
  
• Non-Gaussianity and Baryonic Isocurvature Fluctuations in the Curvaton Scenario;　2009/01
  ANNOUNCEMENT INFO.;　Physics Letters B671, 339, 2009
  AUTHOR;　Takeo Moroi and Tomo Takahashi
  
• Constraints on neutrino masses from weak lensing;　2009/01
  ANNOUNCEMENT INFO.;　Physical Review D79, 023520, 2009
  AUTHOR;　Kiyotomo Ichiki, Masahiro Takada and Tomo Takahashi
  
• On the Determination of Neutrino Masses and Dark Energy Evolution from the Cross Correlation of CMB and LSS;　2008
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics, 8, 2, 17
  AUTHOR;　Kazuhide Ichikawa and Tomo Takahashi
  
• Cosmological avatars of the landscape. I: Bracketing the SUSY breaking scale;　2008
  ANNOUNCEMENT INFO.;　Physical Review D, 77, 63510
  AUTHOR;　R.Holman, Laura Mersini-Houghton and Tomo Takahashi
  
• The Hubble Constant and Dark Energy from Cosmological Distance Measures;　2008
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics VOL.8, NO.4, 027, 2008
  AUTHOR;　Kazuhide Ichikawa and Tomo Takahashi
  
• Primordial Helium Abundance from CMB: a constraint from recent observations and a forecast;　2008
  ANNOUNCEMENT INFO.;　Physical Review D78:043509,2008
  AUTHOR;　Kazuhide Ichikawa, Toyokazu Sekiguchi, Tomo Takahashi
  
• Non-Gaussianity, Spectral Index and Tensor Modes in Mixed Inflaton and Curvaton Models;　2008
  ANNOUNCEMENT INFO.;　Physical Review D78:023513, 2008
  AUTHOR;　Kazuhide Ichikawa, Teruaki Suyama, Tomo Takahashi, Masahide Yamaguchi
  
• Signatures of Non-Gaussianity in the Curvaton Model;　2008
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics VOL.8, NO.9, 012, 2008
  AUTHOR;　Kari Enqvist and Tomo Takahashi
  
• Primordial Curvature Fluctuation and Its Non-Gaussianity in Models with Modulated Reheating;　2008
  ANNOUNCEMENT INFO.;　Physical Review D78, 063545, 2008
  AUTHOR;　Kazuhide Ichikawa, Teruaki Suyama, Tomo Takahashi, Masahide Yamaguchi
  
• Probing the effective number of neutrino species with the cosmic microwave background;　2008
  ANNOUNCEMENT INFO.;　Physical Review D78, 083526, 2008
  AUTHOR;　Kazuhide Ichikawa, Toyokazu Sekiguchi, Tomo Takahashi
  
• Dark Energy Parametrizations and the Curvature of the Universe;　2007
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics, 7, 2, 1
  AUTHOR;　Kazuhide Ichikawa and Tomo Takahashi
  
• Constraints on Generalized Dark Energy from Recent Observations;　2007
  ANNOUNCEMENT INFO.;　Physical Review D, 75, 123002
  AUTHOR;　Kiyotomo Ichiki and Tomo Takahashi
  
• Cosmological avatars of the landscape. II: CMB and LSS signatures;　2007
  ANNOUNCEMENT INFO.;　Physical Review D, 77, 63511
  AUTHOR;　R.Holman, Laura Mersini-Houghton and Tomo Takahashi
  
• Implication of Dark Energy Parametrizations on the Determination of the Curvature of the Universe;　2006
  ANNOUNCEMENT INFO.;　Journal of Cosmology and Astroparticle physics, 6, 12, 5
  AUTHOR;　Kazuhide Ichikawa, Masahiro Kawasaki, Toyokazu Sekiguchi and Tomo Takahashi
  
• Implications of cosmic strings with time-varying tension on CMB and large scale structure;　2006
  ANNOUNCEMENT INFO.;　Physical Review D, 74, 63526
  AUTHOR;　Kazuhide Ichikawa, Tomo Takahashi and Masahide Yamaguchi,
  
• Effects of Cosmic Strings on Free Streaming;　2006
  ANNOUNCEMENT INFO.;　Physical Review D, 74, 63512
  AUTHOR;　Tomo Takahashi and Masahide Yamaguchi
  
• Constraining SuperWIMPy and Warm Subhalos with Future Submillilensing;　2006
  ANNOUNCEMENT INFO.;　Physics Letters B, 643, 141
  AUTHOR;　Junji Hisano, Kaiki Taro Inoue and Tomo Takahashi
  

Material, Commentary, Editorials, Research Report, A Comprehensive Journal Articles

• インフレーション宇宙の解明へ向けて;　2019/07
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Non-Gaussianity in the Curvaton Scenario;　2009
  ANNOUNCEMENT INFO.;　Proceedings of the 18th Workshop on General Relativity and Gravitation
  AUTHOR;　Tomo Takahashi
  
• Dark Side of the Universe;　2008/08
  ANNOUNCEMENT INFO.;　素粒子論研究 2008年8月号
  AUTHOR;　Tomo Takahashi
  

General Lectures

• Multi-dimensional perspectives on the inflationary Universe;　2023/11
  ANNOUNCEMENT INFO.;　Seminar at Osaka University
  AUTHOR;　Tomo Takahashi
  
• Cosmology with 21cm line;　2023/05
  ANNOUNCEMENT INFO.;　Seminar at Hokkaido University
  AUTHOR;　Tomo Takahashi
  
• Tensions in Cosmology: Implications for new physics;　2023/02
  ANNOUNCEMENT INFO.;　2023 Winter-II NRF-JSPS Workshop in particle physics, Cosmology and Gravitation, Ewha Womans University, Seoul, Korea
  AUTHOR;　Tomo Takahashi
  
• Multi-field perspective on the inflationary Universe;　2022/11
  ANNOUNCEMENT INFO.;　Seminar a Kanazawa University, Kanazawa
  AUTHOR;　Tomo Takahashi
  
• Probing the early Universe with 21cm line;　2022/06
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• What does the Hubble tension tell us?;　2022/06
  ANNOUNCEMENT INFO.;　Seminar at Tohoku University
  AUTHOR;　Tomo Takahashi
  
• Cosmological bound on neutrino masses in the light of H0 tension;　2020/12
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Towards understanding the inflationary Universe;　2019/11
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Structure formation with two periods of inflation: Beyond plain ΛCDM;　2019/09
  ANNOUNCEMENT INFO.;　Seminar at Sungkyunkwan University, Korea
  AUTHOR;　Tomo Takahashi
  
• Aspects of non-minimal inflation;　2019/06
  ANNOUNCEMENT INFO.;　seminar at KEK, Tsukuba, Japan
  AUTHOR;　Tomo Takahashi
  
• Aspects of non-minimal inflation;　2019/06
  ANNOUNCEMENT INFO.;　The 3rd NRF-JSPS workshop in particle physics, cosmology, and gravitation
  AUTHOR;　Tomo Takahashi
  
• What can we learn from the 21cm global signal?;　2019/01
  ANNOUNCEMENT INFO.;　The 2nd NRF-JSPS workshop in particle, physics, cosmology and gravitation, Tongyeong, Korea
  AUTHOR;　Tomo Takahashi
  
• Back-Reaction of Gravitational waves revisited;　2018/08
  ANNOUNCEMENT INFO.;　Cosmo 2018, IBS, Daejeon
  AUTHOR;　Tomo Takahashi
  
• Back-Reaction of Gravitational waves;　2018/07
  ANNOUNCEMENT INFO.;　The first NRF-JSPS workshop in particle physics, cosmology, and gravitation, Hokkaido
  AUTHOR;　Tomo Takahashi
  
• Impacts of a spectator field in the early Universe;　2017/08
  ANNOUNCEMENT INFO.;　20th meeting of New Higgs working group
  AUTHOR;　Tomo Takahashi
  
• Probing Inflationary Models with 21cm fluctuations from minihalos;　2017/08
  ANNOUNCEMENT INFO.;　Cosmo 2017, Paris, France
  AUTHOR;　Tomo Takahashi
  
• Possible roles of a spectator field in the early Universe;　2017/05
  ANNOUNCEMENT INFO.;　“The origin and evolution of the Universe,” Jeju National University, Korea
  AUTHOR;　Tomo Takahashi
  
• Probing Inflationary Universe with 21cm fluctuations;　2017/03
  ANNOUNCEMENT INFO.;　Seminar, McGill University, Montreal, Canada
  AUTHOR;　Tomo Takahashi
  
• Probing inflationary models on small and large scales;　2016/11
  ANNOUNCEMENT INFO.;　Seminar at Institute for Theoretical Physics, Utrecht University, Netherlands
  AUTHOR;　Tomo Takahashi
  
• Dark matter interaction and structure formation in the Universe;　2016/11
  ANNOUNCEMENT INFO.;　Seminar, SISSA, Trieste, Italy
  AUTHOR;　Tomo Takahashi
  
• Probing Multi-field models of Inflation on Small Scales;　2016/06
  ANNOUNCEMENT INFO.;　Seminar, University of Warsaw
  AUTHOR;　Tomo Takahashi
  
• Mixed inflaton and Spectator field Models: Current constraints and CMB mu distortion;　2016/05
  ANNOUNCEMENT INFO.;　Cosmology seminar, University of Jyvaskyla
  AUTHOR;　Tomo Takahashi
  
• Inflationary Universe: Current status and future prospects;　2016/04
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Probing Inflationary Models on Small Scales;　2016/03
  ANNOUNCEMENT INFO.;　Mini-workshop on inflation,YITP, Kyoto University
  AUTHOR;　Tomo Takahashi
  
• Mixed inflaton and Spectator field Models: CMB constraints and μ distortion;　2016/03
  ANNOUNCEMENT INFO.;　Seminar at ETH Zürich, Switzerland
  AUTHOR;　Tomo Takahashi
  
• Aspects of Multi-field models of inflation;　2015/11
  ANNOUNCEMENT INFO.;　Seminar at Korea Astronomy and Space Science Institute, Daejeon, Korea
  AUTHOR;　Tomo Takahashi
  
• Cosmology of 21 cm line;　2015/11
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Mixed Inflaton and Spectator Field Models: CMB constraints and μ distortion;　2015/09
  ANNOUNCEMENT INFO.;　Cosmo 2015, University of Warsaw, Poland
  AUTHOR;　Tomo Takahashi
  
• Studying the inflationary Universe with gravitational waves;　2014/11
  ANNOUNCEMENT INFO.;　JGRG 24, Kavli IPMU
  AUTHOR;　Tomo Takahashi
  
• Inflationary Universe with a Spectator field;　2014/11
  ANNOUNCEMENT INFO.;　Seminar at Institute for Theoretical Physics, Utrecht University, Netherlands
  AUTHOR;　Tomo Takahashi
  
• Aspects of spectator field models;　2013/11
  ANNOUNCEMENT INFO.;　CERN Cosmology seminar, Geneva
  AUTHOR;　Tomo Takahashi
  
• The origin of density fluctuations after Planck;　2013/04
  ANNOUNCEMENT INFO.;　seminar, APCTP, Pohang, Korea
  AUTHOR;　Tomo Takahashi
  
• Higgs in the early Universe;　2012/11
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Toward understanding the Origin of Density Fluctuations and Inflation: “beyond” fNL;　2012/10
  ANNOUNCEMENT INFO.;　Seminar, Institute of Cosmology and Gravitation, University of Portsmouth
  AUTHOR;　Tomo Takahashi
  
• Scale-dependence of non-Gaussianities as a probe of the early Universe;　2012/09
  ANNOUNCEMENT INFO.;　Corfu Summer Institute, TR33 workshop, Corfu, Greece
  AUTHOR;　Tomo Takahashi
  
• Cosmology with 21 cm line;　2012/07
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Probing the early Universe with isocurvature fluctuations and non-Gaussianity;　2011/05
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Probing the early Universe with isocurvature fluctuations and non-Gaussianity;　2011/05
  ANNOUNCEMENT INFO.;　Cosmology Seminar, University of Helsinki, Finland
  AUTHOR;　Tomo Takahashi
  
• Scale-dependence of Non-Gaussianity;　2011/03
  ANNOUNCEMENT INFO.;　Molecule-type Workshop "Cosmological Perturbation and Cosmic Microwave Background," YITP, Kyoto University
  AUTHOR;　Tomo Takahashi
  
• Toward understanding the origin of density fluctuations: Discriminating models of non-Gaussianity;　2010/12
  ANNOUNCEMENT INFO.;　Seminar, APC, CNRS-Universite Paris 7, Paris, France
  AUTHOR;　Tomo Takahashi
  
• Dark Matter/baryon Isocurvature Fluctuations and Non-Gaussianity;　2010/12
  ANNOUNCEMENT INFO.;　Seminar, CP3, Universite catholique de Louvain, Belgium
  AUTHOR;　Tomo Takahashi
  
• Scale-dependence of non-Gaussianity as a probe of the early Universe;　2010/11
  ANNOUNCEMENT INFO.;　Extra-Dimension Probe by Cosmophysics, KEK, Tsukuba
  AUTHOR;　Tomo Takahashi
  
• Classifying models of large (local-type) non-Gaussianity;　2010/09
  ANNOUNCEMENT INFO.;　Cosmo 2010, University of Tokyo
  AUTHOR;　Tomo Takahashi
  
• Cosmological Aspects of Long-Lived Charged Massive Particles;　2010/06
  ANNOUNCEMENT INFO.;　Planck 2010, CERN
  AUTHOR;　Tomo Takahashi
  
• Probing the physics of the early Universe with Primordial Non-Gaussianity;　2010/03
  ANNOUNCEMENT INFO.;　Seminar at Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Japan
  AUTHOR;　Tomo Takahashi
  
• Bispectrum and Trispectrum in models with large Non-Gaussianity;　2010/03
  ANNOUNCEMENT INFO.;　Workshop “The non-Gaussian Universe,” YITP, Kyoto University, Japan
  AUTHOR;　Tomo Takahashi
  
• Probing the physics of the early Universe with Primordial Non-Gaussianity;　2010/02
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• The physics of the early Universe and non-Gaussianity;　2009/10
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Non-Gaussianity and Baryogenesis;　2009/09
  ANNOUNCEMENT INFO.;　Particle Cosmology Institute, CERN
  AUTHOR;　Tomo Takahashi
  
• Non-Gaussianity in the Curvaton Scenario;　2009/04
  ANNOUNCEMENT INFO.;　Focus week on non-Gaussianities in the sky, IPMU, University of Tokyo, Kashiwa
  AUTHOR;　Tomo Takahashi
  
• Non-Gaussianity and its Implications for the Physics of the Early Universe;　2008/12
  ANNOUNCEMENT INFO.;　名古屋大学素粒子論研究室セミナー
  AUTHOR;　高橋　智
  
• Non-Gaussianity in the Curvaton Scenario;　2008/11
  ANNOUNCEMENT INFO.;　The 18th Workshop on General Relativity and Gravitation, Hiroshima
  AUTHOR;　Tomo Takahashi
  
• Non-Gaussianity and its Implications for the Physics of the Early Universe;　2008/07
  ANNOUNCEMENT INFO.;　東北大学素粒子論研究室セミナー
  AUTHOR;　高橋　智
  
• Non-Gaussianity in Models with Mixed Inflaton and Curvaton;　2008/06
  ANNOUNCEMENT INFO.;　Particle physics and Cosmology seminar, McGill University, Canada
  AUTHOR;　Tomo Takahashi
  
• Non-Gaussianity in Models with Mixed Inflaton and Curvaton;　2008
  ANNOUNCEMENT INFO.;　Cosmology Seminar, University of Helsinki, Finland
  AUTHOR;　Tomo Takahashi
  
• Free Streaming and Non-Thermally Produced Dark Matter;　2007/08
  ANNOUNCEMENT INFO.;　COSMO 07, UK
  AUTHOR;　Tomo Takahashi
  
• Probing superWIMPy Halos with Gravitational Lensing;　2006/05
  ANNOUNCEMENT INFO.;　
  AUTHOR;　高橋　智
  

Invited Lecture, Special Lecture

• Cosmological tensions and their implications for scenarios of the early Universe;　2024/01
  ANNOUNCEMENT INFO.;　37th meeting of New Higgs Working Group
  AUTHOR;　Tomo Takahashi
  
• 21cm line as a probe of BSM;　2023/10
  ANNOUNCEMENT INFO.;　the 5th Toyama International Symposium on "Physics at the Cosmic Frontier”
  AUTHOR;　Tomo Takahashi
  
• Probing multi-field inflation with LiteBIRD;　2023/03
  ANNOUNCEMENT INFO.;　Non-linear nature of cosmological perturbations and its observational consequences, YITP, Kyoto University
  AUTHOR;　Tomo Takahashi
  
• A solution of the Hubble tension in cosmology and its impacts on other cosmological aspects;　2023/02
  ANNOUNCEMENT INFO.;　KEK-PH + KEK-Cosmo + QUP joint lectures and workshops 2023 on “Hubble Tension 2023”
  AUTHOR;　Tomo Takahashi
  
• Tensions in cosmology and its implications for new physics;　2023/02
  ANNOUNCEMENT INFO.;　Kagoshima Workshop on Particles, Fields and Strings 2023
  AUTHOR;　
  
• What does the Hubble tension tell us?;　2022/11
  ANNOUNCEMENT INFO.;　AAPPS-DACG 2022 workshop, APCTP, Korea
  AUTHOR;　Tomo Takahashi
  
• Non-cold Dark Matter Cosmology;　2022/09
  ANNOUNCEMENT INFO.;　Deep insights and Multiple strategies for Deciphering the Mystery of Dark Matter, RIKEN, Kobe
  AUTHOR;　Tomo Takahashi
  
• How can we really understand the inflationary Universe?;　2022/03
  ANNOUNCEMENT INFO.;　Upcoming CMB observations and Cosmology, YITP
  AUTHOR;　
  
• Constructing and probing inflationary models;　2021/10
  ANNOUNCEMENT INFO.;　27th International Conference of International Academy of Physical Sciences on Advances in Relativity and Cosmology
  AUTHOR;　Tomo Takahashi
  
• Does the H0 tension suggest a new physics?;　2021/01
  ANNOUNCEMENT INFO.;　KMI colloquium, Nagoya University
  AUTHOR;　Tomo Takahashi
  
• 宇宙論はいかにして進展してきたか?;　2020/12
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Probing the primordial Universe with 21cm line;　2020/01
  ANNOUNCEMENT INFO.;　Invited seminar, International KEK-Cosmo and APCosPA Winter School 2020 "Cosmological Structures in the Era of Large Surveys"
  AUTHOR;　Tomo Takahashi
  
• 21cm cosmology;　2020/01
  ANNOUNCEMENT INFO.;　Invited lecture, International KEK-Cosmo and APCosPA Winter School 2020 "Cosmological Structures in the Era of Large Surveys"
  AUTHOR;　Tomo Takahashi
  
• Probing the early Universe with 21cm line;　2019/02
  ANNOUNCEMENT INFO.;　FAPESP-JSPS workshop on Dark Energy, Dark Matter and Galaxies, Sao Paulo, Brazil
  AUTHOR;　Tomo Takahashi
  
• Probing the early Universe with 21cm line;　2019/01
  ANNOUNCEMENT INFO.;　The 2nd Korea-Japan bilateral workshop on String Axion Cosmology, Nagasaki
  AUTHOR;　Tomo Takahashi
  
• Probing the early Universe: Perspectives from current and future cosmological observations;　2018/11
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Structure Formation beyond the standard CDM paradigm;　2017/10
  ANNOUNCEMENT INFO.;　
  AUTHOR;　高橋　智
  
• Dark matter and bounds on the reheating temperature;　2017/03
  ANNOUNCEMENT INFO.;　HPNP2017 (The 3rd International Workshop on "Higgs as a Probe of New Physics")
  AUTHOR;　Tomo Takahashi
  
• How can we probe inflation and the origin of density fluctuations?;　2016/10
  ANNOUNCEMENT INFO.;　JGRG26, Osaka City University
  AUTHOR;　Tomo Takahashi
  
• The early and late time acceleration of the Universe;　2016/03
  ANNOUNCEMENT INFO.;　“New Generation Quantum Theory -Particle Physics, Cosmology, and Chemistry-”, Kyoto University, Japan
  AUTHOR;　Tomo Takahashi
  
• Aspects of Multi-field models of inflation;　2016/01
  ANNOUNCEMENT INFO.;　APCTP workshop “New Perspectives on Cosmology,” Asia Pacific Center for Theoretical Physics, Pohang, Korea
  AUTHOR;　Tomo Takahashi
  
• Decaying Dark Matter and Large Scale Structure;　2015/12
  ANNOUNCEMENT INFO.;　Busan Workshop on Particle Physics, String theory and Cosmology, Busan, Korea
  AUTHOR;　Tomo Takahashi
  
• Aspects of Multi-field models of inflation;　2015/12
  ANNOUNCEMENT INFO.;　2nd LeCosPA International Symposium,Taipei,Taiwan
  AUTHOR;　Tomo Takahashi
  
• 21cm Cosmology;　2015/09
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Multi-field models of inflation and isocurvature fluctuations;　2015/09
  ANNOUNCEMENT INFO.;　International Workshop on Particle Physics and Cosmology, Tohoku University, Sendai, Japan
  AUTHOR;　Tomo Takahashi
  
• Studying the inflationary Universe with gravitational waves;　2015/01
  ANNOUNCEMENT INFO.;　Joint Winter Conference on Particle Physics, String and Cosmology, High1, Korea
  AUTHOR;　Tomo Takahashi
  
• Probing the inflationary Universe with gravitational waves;　2014/08
  ANNOUNCEMENT INFO.;　Benasque Modern Cosmology 2014 workshop, Benasque, Spain
  AUTHOR;　Tomo Takahashi
  
• Inflationary Gravitational Waves and CMB;　2014/07
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Curvaton and high-scale inflation;　2014/05
  ANNOUNCEMENT INFO.;　Enqfest-30 years of Cosmology, Helsinki
  AUTHOR;　Tomo Takahashi
  
• The origin of density fluctuations and the early Universe;　2013/10
  ANNOUNCEMENT INFO.;　Tohoku Forum for Creativity “Particle Physics and Cosmology after the Discovery of Higgs boson,” Sendai, Japan
  AUTHOR;　Tomo Takahashi
  
• Spectator field models after Planck;　2013/06
  ANNOUNCEMENT INFO.;　“Cosmological Perturbation post-Planck,” Helsinki, Finland
  AUTHOR;　Tomo Takahashi
  
• 宇宙密度揺らぎの非ガウス性とは;　2013/03
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Probing the early Universe with Primordial Fluctuations: beyond fNL;　2012/11
  ANNOUNCEMENT INFO.;　PPC2012, KIAS, Seoul, Korea
  AUTHOR;　Tomo Takahashi
  
• Probing Dark Matter with CMB and LSS;　2012/08
  ANNOUNCEMENT INFO.;　Workshop on Dark Matter Phenomenology, APCTP, Pohang, Korea
  AUTHOR;　Tomo Takahashi
  
• Cosmology of Moduli;　2011/08
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Non-Gaussianity in models with isocurvature fluctuations and current limits;　2009/04
  ANNOUNCEMENT INFO.;　Non-linear cosmological perturbations, YITP, Kyoto University, Kyoto
  AUTHOR;　Tomo Takahashi
  
• Dark Side of the Universe;　2007/08
  ANNOUNCEMENT INFO.;　
  AUTHOR;　高橋　智
  
• The Nature of Dark Energy and its Implications for Particle Physics and Cosmology;　2007/05
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• The Nature of Dark Energy and its Implications for Inflationary Cosmology;　2007/03
  ANNOUNCEMENT INFO.;　 Finnish-Japanese workshop on Particle Cosmology, Helsinki, Finland
  AUTHOR;　Tomo Takahashi
  
• Shedding light on the Dark Side of the Universe: Implications from CMB and all that;　2006/09
  ANNOUNCEMENT INFO.;　the 5th RESCEU workshop 栃木
  AUTHOR;　高橋　智