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14 papers · 2 filters
The two-loop eight-point amplitude in ABJM theory
Song He, Yu-tin Huang, Chia-Kai Kuo +1
In this paper, we present the two-loop correction to scattering amplitudes in three-dimensional Chern-Simons matter theory. We use eight-point case as our main exam…
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…
Late-time correlation functions in dS/CFT correspondence
Heng-Yu Chen, Shi Chen, Yasuaki Hikida
We compute the late-time correlation functions on three-dimensional de Sitter spacetime for a higher-spin gravity theory. For this, we elaborate on the formulation to obtain the wa…
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…
Open String Probe in Soft Hair BTZ
Chi-Hsien Tai, Sayid Mondal, Wen-Yu Wen
We study the boundary CFT under supertranslation in terms of the AdS/CFT correspondence. In particular, we probe the soft hair BTZ background by several open string configurations…
Understanding anomalous particle production in massless QED via time-varying angle
Yu Hamada, Ryuichiro Kitano, Ryutaro Matsudo +1
The Maxwell equations imply that, under the background of non-zero , varying term produces . An interesting example is the…