Ryusuke JINNO

Ryusuke JINNO

Ryusuke JINNO

D. Sci., Univ. of Tokyo, 2016
Associate Professor

Research group: Theoretical Physics Group
Phone: +81-78-803-5683
E-mail: jinnophys.sci.kobe-u.ac.jp
Personal HP: https://jinno.sakura.ne.jp/jinno/index.html

Research Description

The Standard Model of particle physics has been proven to be valid up to so-called the electroweak scale (～100 GeV). However, it cannot explain why we are here: it cannot solve critical mysteries such as the baryon asymmetry of the Universe, neutrino masses, dark matter, dark energy, cosmic inflation, grand unification, and the strong CP problem. Therefore, the Standard Model cannot be a complete theory.

I have been working on the possibility of using the early Universe to pin down theories beyond the Standard Model. In fact, there is a close connection between particle physics and cosmology: microscopic physics determines the evolution of the macroscopic Universe, and conversely, close observation of the traces in the macroscopic Universe can provide clues to the microscopic physics.

For example, the first detection of gravitational waves by LIGO-Virgo in 2015 opened up the possibility of investigating the high-energy Universe with gravitational waves. In the next 10-20 years, gravitational wave cosmology will be in its golden age with the launch of LISA, DECIGO, and other observational satellites, providing a unique opportunity to explore the dynamics in the early Universe and ultimately, the unsolved mysteries of particle theory and cosmology. Through my research, I would like finally to bring humanity as close as possible to the answers to the question: "Where do we come from? What are we? Where are we going?"

Main Publications

  1. "The LISA Cosmology Working Group, P. Auclair et al., “Cosmology with the Laser Interferometer Space Antenna,” Living Rev. Rel. 26 no. 1, (2023) 5.
  2. R. Jinno, G. Kalin, Z. Liu, and H. Rubira, “Machine learning Post-Minkowskian integrals,” JHEP 07 (2023) 181.
  3. M. Eto, Y. Hamada, R. Jinno, M. Nitta, and M. Yamada,“Abrikosov-Nielsen-Olesen strings from the Coleman-Weinberg potential,”Phys. Rev. D 106 no. 11, (2022) 116002.
  4. Y. Gouttenoire, R. Jinno, and F. Sala, “Friction pressure on relativistic bubble walls,” JHEP 05 (2022) 004.
  5. R. Jinno and M. Takimoto, “Gravitational waves from bubble dynamics:Beyond the Envelope,” JCAP 01 (2019) 060.
  6. Y. Ema, R. Jinno, K. Mukaida, and K. Nakayama, “Violent Preheating inInflation with Nonminimal Coupling,” JCAP 02 (2017) 045.
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