題目：「Cosmological inflation from higher-dimensional gauge theory and gravity」
講師：小山 陽次（台湾清華大学）

Abstract:
Cosmological inflation in the early universe is necessary for current cosmology.
We propose inflation models based on higher-dimensional gauge theory, and gravity.
The extra space components of higher-dimensional gauge field and metric are
scalar fields in 4 dimensions.
We show the inflation models in which the scalar field from A_M or g_{MN}
is identified with the inflaton can solve the fine-tuning problem in
inflation. Then we consider the possibility of the inflation model based on
the higher-dimensional gauge theory plus gravity.