Magnetic-type Love number differentiating quark stars from neutron stars
Kenji Fukushima, Josuke Minamiguchi, and Tomoya Uji
CV
Education
- 2026–present: PhD in Physics, Graduate School of Science, The University of Tokyo. Advisor: Prof. Kenji Fukushima.
- 2024–2026: MSc in Physics, Graduate School of Science, The University of Tokyo (conferred March 2026). Advisor: Prof. Kenji Fukushima.
- 2020–2024: BSc in Physics, Faculty of Science, The University of Tokyo.
Awards
- 2026: Ukakuren Master’s Thesis Award, Japan Forum of Nuclear Astrophysics (Ukakuren), for the master’s thesis Probing the Existence of Quark Stars via Tidal Response.
- 2026: JASSO Type I Scholarship, half repayment exemption for outstanding achievement (master’s program).
Fellowships and research support
- 2024–2025: Iwadare Scholarship, Iwadare Scholarship Foundation (master’s program).
Employment and research experience
- October 2025–present: Research Assistant, International Graduate Program of Innovation for Intelligent World (WINGS-IIW), The University of Tokyo.
- August–September 2023: Research internship, The University of British Columbia, Canada (UTokyo Study and Visit Abroad Program).
Publications
Generalized parton distributions of the nucleon in the chiral quark soliton model: Sum over all quark states at nonzero skewness and momentum transfer
Josuke Minamiguchi
Preprint, arXiv:2609.37354 [hep-ph] (2026)
arXivChiral anomaly and nucleon spin decomposition in the chiral quark soliton model
Josuke Minamiguchi and Tomoya Uji
Preprint, arXiv:2609.25867 [hep-ph] (2026)
arXivUniversal relations for neutron stars from asymptotic analysis
Syo Kamata, Josuke Minamiguchi, and Shuhei Minato
Preprint, arXiv:2608.19939 [gr-qc] (2026)
arXiv
Talks and presentations
Magnetic-type Love number differentiating quark stars from neutron stars
Poster with flash talk at YITP Workshop "Buenas Ideas on the QCD Phase Diagram," Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto, Japan
Testing the existence of quark stars with the magnetic-type Love number
Invited seminar at Niigata University, Niigata, Japan
Differences between quark stars and neutron stars seen in the magnetic-type Love number
Talk at 80th Annual Meeting of the Physical Society of Japan, Hiroshima University, Hiroshima, Japan
Distinguishing quark stars from neutron stars using magnetic-type Love number
Seminar at Kochi University, Kochi, Japan
Distinguishing quark stars from neutron stars by tidal deformability
Talk at 2025 Spring Meeting of the Physical Society of Japan, Online