1.1k citations · 4.8k across the 90 of their papers we have counts for
90 papers
Quantum phase transition and absence of quadratic divergence in generalized quantum field theories
Hikaru Kawai, Kiyoharu Kawana, Kin-ya Oda +1
In ordinary thermodynamics, around first-order phase transitions, the intensive parameters such as temperature and pressure are automatically fixed to the phase transition point wh…
UV Dispersive Effects on Hawking Radiation
Emil T. Akhmedov, Tin-Long Chau, Pei-Ming Ho +3
We revisit the connection between Hawking radiation and high-frequency dispersions for a Schwarzschild black hole following the work of Brout et al.. After confirming the robustnes…
4D Weyl Anomaly and Diversity of the Interior Structure of Quantum Black Hole
Pei-Ming Ho, Hikaru Kawai, Henry Liao +1
We study the interior metric of 4D spherically symmetric static black holes by using the semi-classical Einstein equation and find a consistent class of geometries with large curva…
Wave Function Renormalization and Flow of Couplings in Asymptotically Safe Quantum Gravity
Hikaru Kawai, Nobuyoshi Ohta
The importance of the proper treatment of the wave function renormalization in the renormalization group analysis of quantum gravity is pointed out. The renormalization factor, som…
Baby universes in 2d and 4d theories of quantum gravity
Yuta Hamada, Hikaru Kawai, Kiyoharu Kawana
The validity of the Coleman mechanism, which automatically tunes the fundamental constants, is examined in two-dimensional and four-dimensional quantum gravity theories. First, we…
UV And IR Effects On Hawking Radiation
Pei-Ming Ho, Hikaru Kawai
We study the time-dependence of Hawking radiation for a black hole in the Unruh vacuum, and find that it is not robust against certain UV and IR effects. If there is a UV cutoff at…