招待講師

高田 昌広 氏（IPMU）

題目：Galaxy Survey Cosmology 

概要：The 8.2m Subaru Telescope with its large aperture and prime-focus instruments — Hyper Suprime-Cam (HSC) and the Prime Focus Spectrograph (PFS) — has enabled Japan to establish “observational cosmology”, at a level similar to other major surveys worldwide. Whereas cosmological research in Japan had traditionally been dominated by theoretical research, this represents a remarkable achievement realized over the past decade. In this talk, I will introduce how galaxy surveys make it possible to explore fundamental physics, e.g., including inflation, dark matter, and dark energy.  

山口 昌英 氏（IBS）

題目：Two Cosmic Accelerations: Inflation and Dark Energy—What We Know, What We Don’t, and What’s Next 

概要：I will discuss the two epochs of accelerated cosmic expansion—primordial inflation and today’s acceleration, often attributed to dark energy. I will highlight what is well established from observations, what remains uncertain, and the key assumptions behind the standard theoretical picture. This talk will conclude with a guided discussion of research directions that, I believe, could plausibly drive major progress in the field. 

山崎 雅人 氏（東京大）

題目：Practical Quantum Gravity for Cosmologists 

概要：In this lecture, I will discuss some aspects of quantum gravity that are of possible relevance for practitioners of cosmology, either directly or indirectly.