1.1k citations · 4.8k across the 90 of their papers we have counts for
5 papers · 1 filter
Natural solution to the naturalness problem -- Universe does fine-tuning
Yuta Hamada, Hikaru Kawai, Kiyoharu Kawana
We propose a new mechanism to solve the fine-tuning problem. We start from a multi-local action $ S=\sum_{i}c_{i}S_{i}+\sum_{i,j}c_{i,j}S_{i}S_{j}+\sum_{i,j,k}c_{i,j,k}S_{i}S_{j}S_…
Interior of Black Holes and Information Recovery
Hikaru Kawai, Yuki Yokokura
We analyze time evolution of a spherically symmetric collapsing matter from a point of view that black holes evaporate by nature. We first consider a spherical thin shell that fall…
Saddle point inflation in string-inspired theory
Yuta Hamada, Hikaru Kawai, Kiyoharu Kawana
The observed value of the Higgs mass indicates the possibility that there is no supersymmetry below the Planck scale and that the Higgs can play the role of the inflaton. We examin…
Reinterpretation of the Starobinsky model
Takehiko Asaka, Satoshi Iso, Hikaru Kawai +3
The Starobinsky model of inflation, consistent with Planck 2015, has a peculiar form of the action, which contains the leading Einstein term , the term with a huge coeffic…
Eternal Higgs inflation and cosmological constant problem
Yuta Hamada, Hikaru Kawai, Kin-ya Oda
We investigate the Higgs potential beyond the Planck scale in the superstring theory, under the assumption that the supersymmetry is broken at the string scale. We identify the Hig…