Masataka Ishikawa

First-year PhD Student in Physics | Graduate School of Arts and Sciences, The University of Tokyo

About

I am a PhD student working on theoretical physics, focusing on quantum field theory, gravity, and related topics. My supervisor is Toshifumi Noumi at Komaba High Energy Theory Group.

初めまして！私は駒場素粒子論研究室に所属する野海俊文氏に指導を仰ぎながら、場の量子論や重力理論を中心に理論物理学を研究している博士課程の大学院生です。

My research interests include:

Open Effective Field Theory
Black Hole Physics
Inflation
Unitary Representation theory of Lie algebra for cosmology and quantum field theory

Perturbative unitarity bounds on field-space curvature in de Sitter spacetime: purity vs scattering amplitude
Qianhang Cai, Tomoya Inada, Masataka Ishikawa, Kanji Nishii, Toshifumi Noumi
JHEP 03 (2026), 009

Master thesis (in Japanese)
題目: 散乱振幅から迫るブラックホールと重力波の物理
Title: The Physics of Black Holes and Gravitaional Waves from Scattering Amplitudes

Doctoral thesis
TBA

For the following email address, please change _AT_ into @.

Email: marlborough _AT_ g.ecc.u-tokyo.ac.jp