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Kristiano, Jason
Yukawa Institute for Theoretical Physics (YITP) Program-Specific Researcher
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Last Updated :2026/03/17
Basic Information
Email Address
Email Address
kristiano.jason.8a
kyoto-u.ac.jp
Professional Memberships
- From Mar. 2023, To PresentAssociation of Japanese Theoretical Astronomy and Astrophysics
- From Dec. 2021, To PresentThe Physical Society of Japan
Academic Degree
- 24 Sep. 2021Master of Science (MSc), The University of Tokyo
- 20 Sep. 2024Doctor of Philosophy (PhD), The University of Tokyo
Academic Resume (Graduate Schools)
Academic Resume (Undergraduate School/Majors)
- Universitas Indonesia, Faculty of Mathematics and Natural Sciences, Department of Physics, Graduated
Research History
- From Apr. 2025, To PresentKyoto University, Yukawa Institute for Theoretical Physics, Postdoctoral Researcher
- From Oct. 2024, To Mar. 2025The University of Tokyo, Graduate School of Science Department of Physics, JSPS Postdoctoral Researcher
- From Apr. 2022, To Sep. 2024The University of Tokyo, Graduate School of Science Department of Physics, JSPS DC1 Researcher
Language of Instruction
ID,URL
ORCID ID
J-Global ID
Researcher number
31015233External link
researchmap URL
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Last Updated :2026/03/17
Research
Research Interests
Research Areas
- Natural sciences, Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics, Theoretical Cosmology
Papers
- Inflationary background renormalizationJason Kristiano; Jun'ichi Yokoyama25 Apr. 2025
- Comparing sharp and smooth transitions of the second slow-roll parameter in single-field inflationJason Kristiano; Jun'ichi YokoyamaJournal of Cosmology and Astroparticle Physics, 01 Oct. 2024
- Constraining Primordial Black Hole Formation from Single-Field InflationJason Kristiano; Jun'ichi YokoyamaPhysical Review Letters, 31 May 2024
- Note on the bispectrum and one-loop corrections in single-field inflation with primordial black hole formationJason Kristiano; Jun'ichi YokoyamaPhysical Review D, 15 May 2024
- Perturbative region on non-Gaussian parameter space in single-field inflationJason Kristiano; Jun'Ichi YokoyamaJournal of Cosmology and Astroparticle Physics, 01 Jul. 2022
- Why Must Primordial Non-Gaussianity Be Very Small?Jason Kristiano; Jun'ichi YokoyamaPhysical Review Letters, 11 Feb. 2022
- Magnetic-tip trap systemOki Gunawan; Jason Kristiano; Hendra KweePhysical Review Research, Mar. 2020
- Pure spin-3/2 representation with consistent interactionsT. Mart; J. Kristiano; S. ClymtonPhysical Review C, 27 Sep. 2019
- Coleman-de Luccia tunneling wave functionJ. Kristiano; R. D. Lambaga; H. S. RamadhanPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 10 Sep. 2019
- Pure spin-3/2 propagator for use in particle and nuclear physicsJ. Kristiano; S. Clymton; T. MartPhysical Review C, 07 Nov. 2017
Presentations
- Cosmological correlators in slow-roll violating inflationJason KristianoLooping in the Primordial Universe, Oct. 2024, The European Organization for Nuclear Research (CERN), Invited
- Comparing sharp and smooth transitions of the second slow-roll parameter in single-field inflationJason KristianoThe 27th International Conference on Particle Physics and Cosmology (COSMO), Oct. 2024, Kyoto University
- Single-field inflation and primordial black holesJason KristianoQuantum Aspects of Inflationary Cosmology, Jul. 2024, Munich Institute for Astro-, Particle and BioPhysics (MIAPbP), Invited
- Comparing sharp and smooth transitions of the second slow-roll parameter in single-field inflationJason KristianoInternational Molecule-type Workshop "Extreme Mass Dark Matter Workshop: from Superlight to Superheavy", Mar. 2024, Yukawa Institute for Theoretical Physics, Kyoto University, Invited
- One-loop correction in primordial black hole formation from single-field inflationJason KristianoThe 26th International Conference on Particle Physics and Cosmology (COSMO), Sep. 2023, Universidad Autonoma de Madrid
- Progress on one-loop correction in PBH formation from single-field inflationJason KristianoInternational Molecule-type Workshop "Revisiting cosmological non-linearities in the era of precision surveys", Jul. 2023, Yukawa Institute for Theoretical Physics, Kyoto University, Invited
- Bispectrum and one-loop correction in PBH formation from single-field inflationJason KristianoDomestic Molecule Type Workshop "Non-linear nature of cosmological perturbations and its observational consequences", Mar. 2023, Yukawa Institute for Theoretical Physics, Kyoto University, Invited
Books and Other Publications
- Primordial Black HolesJason Kristiano; Jun'ichi Yokoyama, Joint work, Chapter 3: Generating Large Primordial Fluctuations in Single-Field Inflation for Primordial Black Hole FormationSpringer Singapore, May 2025, Refereed
Awards
- 24 Mar. 2025Graduate School of Science, The University of Tokyo, Research Encouragement Award (Doctoral Graduate)Japan
Media Coverage
- Why some black holes are missing explained by quantum theoryCOSMOS, 31 May 2024, Internet
- Lo strano caso dei buchi neri primordiali mancantiMEDIA INAF, 30 May 2024, Internet
- Where are All the Primordial Black Holes?Universe Today, 30 May 2024, Internet
- If the Big Bang created miniature black holes, where are they?SPACE.com, 30 May 2024, Internet
- The case of the missing black holesThe University of Tokyo, 29 May 2024, Internet
- Ein viel versprechender Kandidat für Dunkle Materie scheidet ausSpektrum.de, 29 May 2024, Internet
External funds: Kakenhi
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Last Updated :2026/03/17
Academic, Social Contribution
Academic Contribution
- Nuclear Physics B ReviewerPeer reviewElsevier, From 2025, To Present
- Journal of Cosmology and Astroparticle Physics (JCAP) ReviewerPeer reviewIOP Publishing, From 2023, To Present
- General Relativity and Gravitation ReviewerPeer reviewSpringer Nature, From 2025
