195 citations · 1k across the 23 of their papers we have counts for
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hep-th2017★ 1 cited
Pulsar Timing Constraints on Physics Beyond the Standard Model
Niayesh Afshordi, Hyungjin Kim, Elliot Nelson
We argue that massive quantum fields source low-frequency long-wavelength metric fluctuations through the quantum fluctuations of their stress-energy, given reasonable assumptions…
hep-th2015★ 36 cited
Aligned natural inflation with modulations
Kiwoon Choi, Hyungjin Kim
The weak gravity conjecture applied for the aligned natural inflation indicates that generically there can be a modulation of the inflaton potential, with a period determined by su…
hep-th2014★ 195 cited
Natural inflation with multiple sub-Planckian axions
Kiwoon Choi, Hyungjin Kim, Seokhoon Yun
We extend the Kim-Nilles-Peloso (KNP) alignment mechanism for natural inflation to models with axions, which obtains a super-Planckian effective axion decay constant $f_{\tex…